The Envelope Enigma: A Case Study

Case Study: Envelope Enigma, a mysterious phenomenon observed in the year 2025.

On a typical Tuesday, Jane Doe received an envelope with no return address, containing only a single sheet of paper with the words "You're Welcome" written on it.

As a renowned expert in the field of Envelope Dynamics, Dr. B. F. Brilliant was called upon to investigate.

Read the full case study, including phase 1: The Initial Enigma.

Read phase 2: The Envelope of Truths.