User blog comment:SayuriDarling/The Trials of Apollo Official Discussion/@comment-1515612-20151210170051/@comment-11512257-20160102050427

Yeah. Also, if this is six months after BOO, then Percy would have good reason to be pissed off with the gods. More events could have gone down. Also, the Kane Chronicles crossovers took place before this, so he's probably just very, very tired.