Children's Fiction Series Bestseller List for January 25, 2007 from sales the week ending January 21, 2007 For the Book Sense store nearest you, call 1-888-BOOKSENSE or visit www.booksense.com   Children's Series 1. The Sisterhood of the Travelling Pants (hardcover and paperback) Ann Brashares, Delacorte 2. Magic Tree House (hardcover and paperback) Mary Pope Osborne, Sal Murdocca (Illus.), Random House 3. Warriors: The New Prophecy (hardcover and paperback) Erin W. Hunter, HarperCollins 4. Alex Rider Adventures (hardcover and paperback) Anthony Horowitz, Puffin 5. Junie B. Jones (hardcover and paperback) Barbara Park, Denise Brunkas (Illus.), Random House 6. Harry Potter (hardcover and paperback) J.K. Rowling, Scholastic 7. A Series of Unfortunate Events (hardcover) Lemony Snicket, HarperCollins 8. Artemis Fowl (hardcover and paperback) Eoin Colfer, Miramax 9. The Clique (paperback) Lisi Harrison, Little Brown 10. The Bartimaeus Trilogy (hardcover and paperback) NEW IN SERIES: Ptolemy's Gate (9780786838684) Jonathan Stroud, Hyperion 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, 828 South Broadway, Tarrytown, NY 10591, call (914) 591-2665, ext. 1239. Reprint Guidelines.