Children's Fiction Series Bestseller List for December 27, 2006 from sales the week ending December 24, 2006 For the Book Sense store nearest you, call 1-888-BOOKSENSE or visit www.booksense.com   Children's Series 1. Magic Tree House  (hardcover and paperback) Mary Pope Osborne, Sal Murdocca (Illus.), Random House 2. Harry Potter  (hardcover and paperback) J.K. Rowling, Scholastic 3. A Series of Unfortunate Events  (hardcover) Lemony Snicket, HarperCollins 4. Junie B. Jones  (hardcover and paperback) Barbara Park, Denise Brunkas (Illus.), Random House 5. Alex Rider Adventures (hardcover and paperback) Anthony Horowitz, Puffin 6. Artemis Fowl  (hardcover and paperback) Eoin Colfer, Miramax 7. The Sisterhood of the Traveling Pants (hardcover and paperback) Ann Brashares, Delacorte 8. The Bartimaeus Trilogy  (hardcover and paperback) Jonathan Stroud, Hyperion 9. Warriors: The New Prophecy  (hardcover and paperback) Erin W. Hunter, HarperCollins 10. His Dark Materials  (hardcover and paperback) Philip Pullman, Yearling The Book Sense Bestseller List is copyrighted and cannot be reprinted without permission from the American Booksellers Association. For information on obtaining permission, contact Meg Smith, Associate Director, Book Sense Marketing, ABA, 200 White Plains Rd., Tarrytown, NY 10591, call (914) 591-2665, ext. 6641. Reprint Guidelines.