Your quiet evening
Take your time. Annotate, compare, and follow your own train of thought.
A night in. An open case. A mind that won’t let go.
Step into a collection of atmospheric mystery PDFs. Read the evidence, untangle the alibis, and uncover the truth — on your own or around the table.
20 completed cases / four complete batches
45–100 minutes per featured case / estimates vary
04 reader files per case / evidence to resolution
There’s a moment when a detail stops being a detail.
A timestamp. A missing line. An alibi that fits a little too well.
Detective Night turns that moment into your evening. Each original case is a self-contained investigation, with written evidence, four suspects, and a conclusion you must justify.
No searching the internet for the answer. No specialist knowledge to bring along. The rules and records you need are inside the dossier.
See what’s inside a caseTake your time. Annotate, compare, and follow your own train of thought.
Share the dossier, debate the evidence, and agree on your final accusation.
Work through changing difficulty levels, from your first case to layered evidence chains.
FIVE PREVIEWS. TWENTY COMPLETE MYSTERIES.
Explore five featured cases from the complete twenty-case archive.
Open a preview to discover its story — without revealing the solution.
Loading the archive…
All 20 cases are complete. These five covers preview the opening batch.
EVERYTHING YOU NEED, IN ONE CASE.
These are games of deduction in PDF form. You receive four separate reader files for each case, with the solution kept apart until you’re ready.
THE INVESTIGATION
The briefing, four suspects, ten evidence records, and six final questions. Read the records carefully: a convincing theory needs a trail of proof.
An illustration of the format. The full evidence lives in your PDFs.
Two guides to set the scene. Start Here introduces the files and the spoiler boundaries. Group Play helps you share evidence and reach a joint verdict.
INCLUDED WITH EVERY COLLECTIONKeep the solution closed. Let curiosity do the rest.
Pick a case and read its briefing. Open the files on a screen or print the reader materials.
YOUR NIGHT BEGINSCompare interviews, records, and timelines. Use the notebook to separate observations from assumptions.
DETAILS BECOME CONNECTIONSAnswer the six final questions. Stuck on one thread? Open only the hint level you need.
A THEORY BECOMES A VERDICTOpen the separate solution and compare your reasoning with the complete evidence chain.
THE TRUTH COMES INTO FOCUSA SMALL CLUE. A DIFFERENT PERSPECTIVE.
A camera records the archive cabinet opening at 21:15. Three people took turns on duty. Which person was on duty when it actually opened?
Read all three records. Correct the time, then follow the rota.
An original mini puzzle for this page, separate from the full cases.WHO WAS ON DUTY?
Make your deduction when you’re ready.
THE BEST PART IS THE MOMENT IT CLICKS.
You’ve seen the clues.
Now see what
they’ve been hiding.
BEGIN WITH ONE. BUILD A COLLECTION.
Six collection sizes. Six clear prices.
One-time digital packages, listed in US dollars.
All 20 investigations are complete. Choose a finished collection of 1, 3, 5, 8, 12, or 20 cases. All six collections are available for purchase, with email delivery after confirmed payment.
Digital PDFs · English edition · Personal use
All six collections are available through secure checkout.
Review your selected collection, final total, any applicable taxes, delivery details, and refund terms before payment.
| Collection | Cases | Case PDFs | Starter guides | Completed cases | Price (USD) |
|---|
Every included case has four PDF files: Investigation, Notebook, Hints, and Solution. Two starter guides are included in every collection.
The full Detective Night archive contains twenty completed, original investigations, organized into four batches of five.
Choose your collection size and explore every included case at your own pace. Each case provides all four reader files, with progressive hints and a separate solution.
All four batches are complete. Files are delivered by email after confirmed payment, with no download deadline.
Five complete investigations, each with a dossier, notebook, hints, and solution.
Five complete investigations, each with a dossier, notebook, hints, and solution.
Five complete investigations, each with a dossier, notebook, hints, and solution.
Five complete investigations, each with a dossier, notebook, hints, and solution.
A FEW ANSWERS, WITHOUT THE SPOILERS.
Here’s what to know about the format, the challenge, and choosing your collection.
Return to the collectionsA collection of original, fictional mystery games delivered as English-language PDFs. You investigate written evidence and answer six final questions, then compare your reasoning with a separate solution. The enchanted archive is the visual setting of this website; the investigations are grounded deduction stories.
Four files: an Investigation, a fillable Notebook, progressive Hints, and a separate Solution. Every collection also includes the Start Here and Group Play guides. The five featured cases each have a 17-page Investigation, a 3-page Notebook, 4 pages of Hints, and a 7-page Solution; page counts may vary across the full collection.
All 20 mysteries are complete. You can purchase a finished collection containing 1, 3, 5, 8, 12, or 20 cases. The five illustrated previews on this page introduce the opening batch; they do not represent the full archive.
Yes. The investigations, clues, notebooks, hints, solutions, and guides are in English. A different-language edition is not currently part of these collections.
Both. Work through the records solo, or investigate together in a personal game session. The Group Play guide explains how to share the evidence, manage hints, and reach a joint verdict. No actor or outside game master is required.
The five featured case previews have estimated sessions of 45–100 minutes. Playing time varies by case and by your pace. They are not timed challenges. Pause, revisit a record, and continue when you want.
You need a device that can read PDFs, or printed reader materials. No separate game app, internet research, external audio, electronics knowledge, or botany knowledge is required. The fictional systems and their rules are explained in the supplied evidence.
Yes, the notebook has fillable PDF fields. Use a PDF reader that supports form filling and save a copy of your work. Browser PDF viewers vary in form support; printing the notebook and writing by hand is also an option.
Hints offer three progressive levels. Open one level at a time when you need a nudge. The solution is a separate file, clearly marked for spoilers. Keep it closed until you have committed to your final answers.
Choose First Case for a single introductory evening, Opening Trilogy for three cases with increasing complexity, or Midnight Collection for the entire completed first batch. Choose Extended Archive for 8 cases, Collector’s Library for 12, or Complete Archive for all 20. All six collections contain finished files.
The displayed offers are one-time digital collections, not subscriptions. You can revisit your files, but knowing the solution changes the challenge: a case is best treated as one fresh deduction experience, then a story to review.
After confirmed payment, your collection is delivered by email, with no download deadline. Our standard refund period is 7 calendar days from receipt of the materials; applicable mandatory local consumer rights can provide additional protection. Contact Suport@detectivenight.lat during Brazilian business hours (Brasília time). Read the delivery information and refund policy below. Online purchase availability is shown for each collection.
LEAVE THE ORDINARY EVENING BEHIND.
Twenty original mysteries. Four files per case.
One evening that might end with “I knew it.”
CLEAR STORIES. CLEAR SELLER INFORMATION.
Original English-language digital mystery collections, offered by Cacholari Digital LTDA. Contact the seller directly for purchase or file-access assistance.
REGISTERED SELLER
Trading brand: Detective Night
Brazilian company registration (CNPJ)
62.782.075/0001-29
REGISTERED BUSINESS ADDRESS
Avenida Paulista, 1471, Conj. 511WHAT WE CREATE
Fictional investigations in PDF form, with original stories, character interviews, evidence, a notebook, progressive hints and a separate solution. Read digitally or print for a private game session.
English-language files · One-time collections · Prices in USD.
CUSTOMER SUPPORT
Brazilian business hours · Brasília time (America/Sao_Paulo)
Contact us for product questions, email delivery, file access, cancellation, refunds, billing concerns or privacy requests.
READ BEFORE YOU CHOOSE.
Seller information, email delivery, refunds, personal-use terms and privacy — available here before you pay.
YOUR FILES, YOUR EVENING
Detective Night is a collection of original, fictional mystery investigations in English-language PDF files. Each completed case contains an Investigation, a fillable Notebook, progressive Hints and a separate Solution. Every collection also includes the Start Here and Group Play guides. Read digitally or print for personal reading and private group play.
Your purchased materials are delivered by email to the address provided at checkout after payment is confirmed. The email provides your PDF files or the download links for your selected collection. Starting a checkout without a confirmed payment does not create a paid order.
There is no download deadline for purchased files. Save a local copy so you can read them offline. If a download link stops working, contact us for help accessing your purchased materials.
Check the email address used for your order and your spam or promotions folders. Contact Suport@detectivenight.lat with your purchase email, order reference and collection name if the delivery cannot be found, a link fails or a file is incomplete. Please do not send full card details.
The purchase supplies digital PDF files. There are no physical shipping charges or physical goods to send back. Use a PDF reader that supports form filling for the Notebook, or print it and write by hand.
All 20 cases are complete. The six collections contain 1, 3, 5, 8, 12 or 20 completed investigations and are available for purchase. The five illustrated previews on this page feature the opening batch of the full archive.
CLEAR RIGHTS BEFORE YOU PAY
Our standard withdrawal and refund period is 7 calendar days from receipt of the purchased digital materials. For distance purchases governed by Brazilian consumer law, the withdrawal rights and repayment obligations of Article 49 of the Brazilian Consumer Protection Code apply.
For purchases outside Brazil, applicable mandatory consumer law may provide a longer period or additional rights. Those protections take precedence where they apply. This policy does not reduce, waive or replace statutory consumer rights, including rights relating to non-delivery, defective files or an incorrect charge.
Email Suport@detectivenight.lat with the email address used for the purchase, your order reference, collection name and a clear request to cancel or receive a refund. Giving a reason is optional when exercising a statutory right of withdrawal. We may ask for information needed to identify the order and verify the request.
Eligible refunds are initiated promptly in accordance with applicable legal deadlines. The original payment method is used where supported; bank or payment-provider processing times may vary. If that method cannot accept a refund, we will arrange a lawful alternative with you.
Contact us about missing materials, damaged files, an incorrect collection, duplicate charges or suspected unauthorized payments. We will review the issue and provide the appropriate correction or refund under the purchase terms and applicable law. Mandatory remedies can remain available after the standard 7-day period.
You can contact us to resolve a billing concern. This does not prevent you from contacting your bank, card issuer or payment provider, or using any formal complaint or dispute procedure available to you. We do not require you to waive those rights in order to receive support.
ONE PURCHASE. CLEAR CONDITIONS.
Detective Night is offered by Cacholari Digital LTDA, CNPJ 62.782.075/0001-29, registered at Avenida Paulista, 1471, Conj. 511, São Paulo — SP, CEP 01311-927, Brasil. Customer support: Suport@detectivenight.lat. Brazilian business hours · Brasília time (America/Sao_Paulo).
Collection prices are displayed in US dollars (USD): US$19.90, US$32.90, US$49.90, US$79.90, US$129.90 and US$199.90. The selected collection, final payable total and any applicable taxes are shown at checkout before payment. Your bank may apply currency conversion or other bank fees.
The payment service used for your order is identified at checkout and on your purchase documentation. Follow its payment instructions and retain your receipt. The landing page itself contains no card-entry fields and does not collect card numbers.
Collections are one-time digital purchases with no subscription or automatic renewal. There is no recurring plan to cancel. To cancel a purchase or request a refund, use the refund and withdrawal procedure described on this page.
Your selected collection is intended for personal reading and private game sessions. You may save and print the purchased materials for those uses. Commercial resale, redistribution and public upload are not included. Please respect the rights that apply to the materials.
A completed refund ends the permission supplied with that purchase; stop using and distributing the refunded materials unless applicable mandatory law provides otherwise.
Review the number of included cases, English-language format, availability, price, email delivery, refund policy and support details. All six displayed collections contain completed case files. Estimates of playing time are guidance and depend on your own pace.
Purchases are subject to applicable law. These terms do not limit mandatory consumer protections or legal remedies in your country. We do not promise a particular deduction result or completion time.
HOW INFORMATION IS USED
Cacholari Digital LTDA, CNPJ 62.782.075/0001-29, is responsible for personal data processed for its Detective Night business. Registered address: Avenida Paulista, 1471, Conj. 511, São Paulo — SP, CEP 01311-927, Brasil. For privacy questions or requests, contact Suport@detectivenight.lat.
Purchases and support may involve your name, email address, order reference, chosen collection, payment status, billing information required by the checkout and messages you send us. Website measurement may involve IP address, approximate location, browser and device information, pages visited, referral and campaign parameters, timestamps, interaction events and conversion information.
We use information to handle orders, deliver purchased materials by email, restore file access, answer support requests, handle refunds and disputes, protect the website and comply with legal obligations. Measurement and attribution help us understand visits, campaigns and conversions.
The legal basis depends on the purpose and applicable law. It may include fulfilling your purchase or request, complying with legal duties, legitimate interests where permitted and consent where required. Optional advertising or analytics processing must respect the choices and protections required in your country.
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Purchase and support records are retained as needed for delivery, access assistance, accounting, disputes and applicable legal requirements. Service providers apply their own retention rules. Providers may process data outside your country; applicable international-transfer requirements remain relevant.
Depending on applicable law, you may request access, correction, deletion, information about sharing, portability or objection, and withdraw consent where processing relies on it. Email Suport@detectivenight.lat to make a request. We may verify that a request relates to your own data and explain any legal reason why a record must be retained.
Purchase and support emails relate to your order or request. Any optional marketing communications must provide the choices required by applicable law. The sample puzzle, book animation and collection explorer can be used without entering a name or email on this landing page.
WHAT EACH OFFER MEANS
Cases 01–20 are complete. First Case contains 1 case; Opening Trilogy contains 3; Midnight Collection contains 5; Extended Archive contains 8; Collector’s Library contains 12; Complete Archive contains all 20. All six collections are available for purchase. Collections include Cases 01 through the quantity selected, so larger collections include the cases in the smaller collections.
Checkout availability depends on applicable law and the payment service’s supported locations and restrictions. Purchases must comply with mandatory legal restrictions that apply to the transaction. If checkout is unavailable in your location, contact Suport@detectivenight.lat for availability information.
The files are fictional entertainment, supplied for personal reading and private game sessions under the personal-use licence above. They are in English; a translated edition is not part of the displayed collections.
No temporary promotional discount or coupon is currently advertised on this page. The listed prices are collection prices. If a promotion is offered, its eligible products, benefit, dates, conditions and exclusions will be disclosed before purchase.
Purchase and privacy information updated 12 October 2026. Mandatory consumer rights always apply.