All about Mystery Vocabulary. This PowerPoint defines words used in mystery stories; common vocabulary words necessary for understanding a mystery unit. Whether reading or writing mysteries, these are the essential words every student should know and understand, such as sleuth, perpetrator, alibi, clue, evidence, deduction, plot, setting, etc. These slides include words, definitions, and a match-up assessment at the end. Teacher directions included. There is a printable list of words and definit