Aesop's Mission is a spoken-word parlour game involving deduction.
[1] In the traditional version of the game, a player familiar with the rules takes on the role of Aesop, and secretly chooses a letter of the alphabet.
Aesop then asks each player in turn to name an animal that they have eaten recently; their answer must be a creature that the animal they are playing would plausibly be capable of eating.
If the named animal contains the letter chosen by Aesop, he denounces them as deserving of punishment and they must perform a forfeit; otherwise they are acquitted as innocent.
[1] In one variant of the game, the players are not animals and Aesop may ask any form of question, simply declaring all responses either "Good!"