I probably enjoyed this one just as much as the others.
I like Rachel's fate. I like the fate-themed twist at the end. I like the promise the gods made at the end.
I thought it was weird how they handled the spy situation. Every once and a while they'd be like, "Well, this sucks. We have a spy." "Oh, gee. The spy must have revealed our secret to our enemies. Bummer." "Gosh darnit, that spy." But they never seemed interested in figuring out who the spy was, nor did they try to.
And don't think i've forgotten about the use of Hercules/Heracles. If i ever meet Rick Riordan, i'm going to have to ask him about that.
*Review written on September 7, 2014.*