This book is part of a book series called Hoofbeats-Lara And the Gray Mare .

This book has been graded for interest at 8-11 years.

There are 140 pages in this book. This book was published 2005 by Turtleback Books .

Kathleen Duey has written more than forty books for children. The Unicorn's Secret is based on a dream she had when she was at school. She lives in southern California.