This book is about Percy Jackson, Thalia, and Nico, so yes, this is fan fiction. Just to let you know, before you read the book, camp Jupiter and camp half blood haven't united, but in fact, they do have a portal that students may go through if they'd like to go to each camp. Blood of Olympus has passed also so your not confused. If you have any questions and you don't understand what's going on let me know. I'll be able to help you and explain things. :)
2 parts