Children's Fiction Series Bestseller List for April 27, 2006 from sales the week ending April 23, 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. Gossip Girl (paperback) Cecily Von Ziegesar, Little Brown 3. Junie B. Jones (hardcover and paperback) Barbara Park, Denise Brunkas (Illus.), Random House 4. Harry Potter (hardcover and paperback) J.K. Rowling, Scholastic 5. The Clique (paperback) Lisi Harrison, Little Brown 6. Alex Rider Adventures (hardcover and paperback) Anthony Horowitz, Puffin 7. A Series of Unfortunate Events (hardcover) Lemony Snicket, HarperCollins 8. Cirque Du Freak (hardcover and paperback) New in series: Lord of the Shadows (0316156280) Darren Shan, Little Brown 9. The A-List Novels (paperback) Zoey Dean, Little Brown 10. The Bartimaeus Trilogy (hardcover and paperback) 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, 200 White Plains Rd., Tarrytown, NY 10591, call (914) 591-2665, ext. 6641. Reprint Guidelines.