December 5
Witch & Wizard: The Fire by James Patterson and Jill Dembowski (Little, Brown, $17.99; ISBN 978-0-316-10190-5). 750,000 copies.
December 6
The 39 Clues: Cahills vs. Vespers Book 2: A King’s Ransom by Jude Watson (Scholastic, $12.99; ISBN 978-0-545-29840-7). 500,000 copies.
Pretty Little Liars #10: Ruthless by Sara Shepard (HarperTeen, $17.99; ISBN 978-0-06-208186-5). 300,000 copies.
The Clockwork Prince by Cassandra Clare (Simon & Schuster, $19.99; ISBN 978-1-4169-7588-5).
December 13
Breaking Dawn Part 1: The Official Illustrated Movie Companion (The Twilight Saga) by Mark Cotta Vaz (Little, Brown, $18.99 paper; ISBN 978-0-316-13411-8). 200,000 copies.
Shark Wars 2: The Battle of Riptide by E.J. Altbacker (Razorbill, $12.99; ISBN 978-1-59514-377-8). 100,000 copies.
December 25
The Vampire Diaries: The Hunters: Phantom by L.J. Smith (HarperTeen, $17.99; ISBN 978-0-06-201768-0). 400,000 copies.
December 27
Magic Tree House #47: Abe Lincoln at Last! by Mary Pope Osborne, illus. by Sal Murdocca (Random, $12.99; ISBN 978-0-375-86825-2). 350,000 copies.
Why We Broke Up by Daniel Handler, illus. by Maira Kalman (Little, Brown, $19.99; ISBN 978-0-316-12725-7). 125,000 copies.