Children's Bestseller List for October 15, 2001 from sales the week ending October 7 Online at www.bookweb.org Thursday, October 11 Published in Bookselling This Week Monday, October 15 For the Book Sense store nearest you, call 1-888-BOOKSENSE or visit www.booksense.com   CHILDREN'S   1. Harry Potter and the Prisoner of Azkaban J.K. Rowling, 0439136369, Scholastic, $7.99.   2. Captain Underpants and the Wrath of the Wicked Wedgie Woman Dav Pilkey, 0439050006, Blue Sky Press, $4.99.   3. Harry Potter and the Chamber of Secrets J.K. Rowling, 0439064872, Scholastic, $6.99.   4. Harry Potter and the Sorcerer's Stone J.K. Rowling, 059035342X, Scholastic, $6.99.   5. Olivia Saves the Circus Ian Falconer, 068982954X, Atheneum, $16.00.   6. Taggerung Brian Jacques, 0399237208, Philomel, $23.99.   7. The Hostile Hospital Lemony Snicket, 0064408663, HarperCollins, $9.95.   8. The Bad Beginning Lemony Snicket, 0064407667, HarperTrophy, $8.95.   9. The Amber Spyglass - 1st Week on List Philip Pullman, 0345413377, Del Rey, $6.99.   10. Goodnight Moon (Board Book) Margaret Wise Brown, Clement Hurd (Illustrator), 0694003611, HarperCollins, $7.99.   The Book Sense Bestseller List is copyrighted and cannot be reprinted without permission from the American Booksellers Association. For information, please contact Sascha Alper, Book Sense Projects Manager, at: (914) 591-2665 ext. 1202, 828 South Broadway, Tarrytown NY. Reprint Guidelines.