A short series of novellas in which the children of Greek gods and Egyptian wizards meet and do battle together.

• The Son of Sobek by Rick Riordan (Percy Jackson and the Kane Chronicles Crossover #1)
• The Staff of Serapis by Rick Riordan (Percy Jackson and the Kane Chronicles Crossover #2)
• The Crown of Ptolemy by Rick Riordan (Percy Jackson and the Kane Chronicles Crossover #3)