Key to Mages' Chest

The Key to Mages' Chest is a key which can be obtained from a prisoner in Ostagar. He tells you that he stole it from a wizard in the camp by getting him drunk. He was later caught wandering around the camp at night and was locked up as he was thought to be a deserter. The key was not found as he decided to swallow it when he was caught. In exchange for getting him some Food and Water he tells you that he will give you the key which he tells you has returned to his possession. The other choice is to simply steal the key from him. The key opens a chest near where the Circle of Magi is set up in Ostagar. There is a Tranquil nearby it and thus it can only be opened when he is gone which is when you later return to Ostagar at night.