I'm in book 2, and my players just started chapter 3. They defeated the regents in the ampitheater, and as soon as Zauglagaul started casting spells at them, they fled into the tower. They triggered the encounter in the first room immediately, but managed to Wall of Force the door so that the dragon couldn't chase them. Any suggestions about where to put the dragon now? Does he just sit in his nest, waiting for them to come out? He can't really fit in the tower.
