The Crown of Ptolemy is the sequel to The Staff of Serapis and is told in the perspective of Percy Jackson. Percy, Annabeth Chase, Sadie Kane, and Carter Kane will appear together. The paperback version of the story was released on March 31, 2015, while an e-book is slated for release on May 12, 2015. The preview of the short is available for everyone exclusively with Hypable. It takes place after The Blood of Olympus.