The game about the monster in the water seems clever in chapter 1 The Mark. Explain the game, and comment on the purpose of these game for handler Xavier and the games

The game consists of Xavier pretending to see a “monster” in the water, after which he begins to scream. His screams frighten the beach goers, and as they run away, the girls take advantage of their absence to go through their belongings and steal. The purpose.... to take what doesn't belong to them by deception.