Anne Ursu was my instructor for the wonderful week-long Whole Novel Workshop for Fantasy at Highlights Foundation last year. She is a gifted instructor and writer and has recently published what I believe is her best book, Breadcrumbs.
NPR chose Breadcrumbs as its December Kid’s Book Club pick. Read their review at http://www.npr.org/2011/11/29/142862998/december-kids-book-club-pick-breadcrumbs. Then get the book and read it, share it with the kids in your life. It is multi-layered and magical.