The Staff of Serapis (Percy Jackson & Kane Chronicles Crossover #2) by Rick Riordan
Publisher: Disney-Hyperion

Goodreads Summary: In this adventure, Annabeth encounters more oddities in the subway than usual, including a two-headed monster and a younger blond girl who reminds her a little of herself. This is the story fans have asked for, in which Annabeth Chase teams up with Sadie Kane. The demigod daughter of Athena and the young magician from Brooklyn House take on a larger-than-life foe from the ancient world. Perhaps even more disturbing than the power-hungry god they encounter is the revelation that he is being controlled by someone—someone all too familiar to Sadie. As a special bonus, the first chapter of THE BLOOD OF OLYMPUS, the final book in the Heroes of Olympus series, is included.
Rating: 5 Stars
Review: Great. In this tale Annabeth Chase and Sadie Kane work together to defeat Serapis, the god of Alexandria. It is hard, but in the end, they win with trickery and flattery as their main tools. Told from Annabeth's perspective, this is amazing.
Purchase Location: Borrowed From Library 
Edition: Paperback 
Recommended for: Percy Jackson and the Kane Chronicles fans.