User blog comment:Menara/The Son of Sobek: The official PJ and Kane Chronicles Crossover/@comment-3146930-20130511194813/@comment-188.223.106.6-20130512154435

Percy mentioned the doors of death and he knew that monsters were returning from the dead so its definitely after son of neptune, and i kinda hope that percy's going to close the doors of death in the last book of heroes of olympus, so son of sobek takes place during heroes of olympus im guessing.