A number of pre-pub books are in Amazon's top 100, but none has been on the list for longer, or is ranked higher, than Rick Riordan's The Serpent's Shadow. The book is the third in the Kane Chronicles series and has been in the top 100 since January 27, 2012 – 89 days and counting. To be published by Disney-Hyperion on May 1, the book's ranking has slowly climbed as the pub date approaches, and currently the book is ranked #10.