This was a great ending to the Percy Jackson series. There is nothing more I could ask for in a series finale. It was capitaving, devestating, and relieving all at once. The character development for all of the characters, including the side ones, was immaculate. Riordan's character development and storytelling is one thing that really shines throughout the series. There is a reason for the hype around these books and I only wish I had read them sooner.

Spoiler

The Clairisse and Serina part had me balling my eyes out... I was not ready for that.