Every file has a final answer.
Physical mystery investigations delivered to your door. Examine evidence, follow clues, and solve the case.
View Case FilesEach Dead Letter Bureau case contains printed evidence, witness statements, police records, photographs, maps, encoded messages, and hidden clues.
Nothing is included by accident. Every document has a purpose.
Choose an investigation from the archive.
Receive a physical case file in the mail.
Scan the QR portal to access hints and submit your findings.