User blog comment:Annabeth and Percy/Ask A&P anything/@comment-26402117-20160101202258/@comment-24055022-20160102023821

Lol. Yeah, it came out over a year ago. The quest didn't even end in The House of Hades, of course there was going to be a new one. And a new series came out this past October, and that book is titled The Sword of Summer, and another series is coming out in May called The Trials of Apollo.