Gratz, Alan,

Monster war : a League of Seven novel / Alan Gratz ; illustrations by Brett Helquist. - First trade paperback edition. - 334 pages : illustrations, map ; 21 cm. - The League of Seven ; book 3 .

"A Tom Doherty Associates book." Includes reading & activity guide.

ISBN: 9780765338273

Subjects--Topical Terms:
Adventure stories.
Secret societies
Monsters