Children's Bestseller List for April 23, 2001 from sales the week ending April 15 Online at www.bookweb.org Thursday, April 19 Published in Bookselling This Week Monday, April 23 For the Book Sense store nearest you, call 1-888-BOOKSENSE or visit www.booksense.com   CHILDREN'S 1. Fantastic Beasts and Where to Find Them J.K. Rowling (writing as Kennilworthy Whisp), 0439295017, Scholastic, $3.99. 2. Quidditch Through the Ages J.K. Rowling (writing as Newt Scamander), 0439295025, Scholastic, $3.99. 3. Twister On Tuesday (Magic Treehouse #23) Mary Pope Osborne, 0679890696, Random House, $3.99. 4. Harry Potter and the Sorcerer's Stone J.K. Rowling, 059035342X, Scholastic, $6.99. 5. Harry Potter and the Chamber of Secrets J.K. Rowling, 0439064872, Scholastic, $6.99. 6. Harry Potter and the Prisoner of Azkaban J.K. Rowling, 0439136350, Scholastic, $19.95. 7. Castaways Of the Flying Dutchman Brian Jacques, 0399236015, Philomel, $22.95. 8. The Bad Beginning Lemony Snicket, 0064407667, HarperTrophy, $8.95. 9. Harry Potter and the Goblet of Fire J.K. Rowling, 0439139597, Scholastic, $25.95. 10. The Captain Underpants Extra-Crunchy Book O' Fun Dav Pilkney, 0439267617, Blue Sky, $3.99. The Book Sense Bestseller List is copyrighted and cannot be reprinted without permission from the American Booksellers Association. For information, please contact Michael Hoynes, Marketing Officer, at: (914) 591-2665 ext. 1204, 828 Broadway, Tarrytown NY. Reprint Guidelines.