This is a class activity for a Precalculus or Trigonometry class that is simplifying trigonometric expressions and proving one expression is equivalent to another. It is played like the board game Clue! where the students will move around the room to different locations and simplify an expression. Their final answer will give them clues. The document has a worksheet for the students to track their work and clues as well as the five locations they will need to solve the mystery!