Thieves land in jail when they are caught by one or more detectives at the castle. However, the previously stolen collection cards are not returned to the original owners.

The thief card is laid in cell number 1. When more than one thief is caught those with lower numbers are placed in jail first. Whenever a new thief arrives in jail, any other thieves already in jail are moved up one cell.

The thieves are released from jail when they move out of the last jail cell (the number of jail cells equals the number of players in the game). Released thief cards are returned to the thief's owner and can again be played.