Lost City - Ciencin, Scott

When three teenagers, each with their own personal problems, set out for the Lost City on the island of Dinotopia, they discover an alien breed of dinosaurs and gain insights into themselves as well.

Lost City 1996, Random House Books for Young Readers, New York, NY

ISBN-13: 9780679869832

Trade paperback

Lost City 1996, Turtleback Books

ISBN-13: 9780613283816

Turtleback School & Library edition