I was brainstorming today, and came up with a working title for book 2.
Seeking the Midnight Star:
The Catacorn adventures continue: Gypsa learns what it means to be a real princess; Myter and Lai take a magically mobile adventure on their own; Sauri tutors Kyp as they search for Myter and Lai and discover their own magical gifts; Zair apprentices with Galatio, only to be captured by a witch.