The Gatewarden at Candlekeep approaches you as you pass through the south-eastern section of the fortress and offers a session of Training as the leader of an impromptu party in the Storage Cellars. This helps you understand how to fight in the game. If you refuse his offer both times he walks away, (apparently into the Clinic, but you will not find him there if you follow), and does not return. The Storage Cellars then remain inaccessible; not so much as a locked door is to be found. If you accept his offer and follow him: If you speak to him again later: