The Lost Hero

I just finished reading The Lost Hero. It is about three Half-Bloods named Jason, Leo and Piper. Jason wakes up on a us with Leo and Piper for a school field trip to the Grand Canyon, but he doesn't remember anything about who he is. Leo and Piper tell him that they are supposed to be friends, but he doesn't remember them. They tell Jason that they are on a field trip for the Wilderness School, a school for kids with "problems". Leo says something and the coach, whose name is Coach Hedge, asks Leo if there is a problem. Leo tells him that he can't hear him and asks him to please use his megaphone, but when Coach Hedge talks, he sounds like Darth Vader. Hedge yells at Leo and Piper asks him how he did it. Leo shows them a screwdriver. After they get off the bus a large storm starts up. A mean boy named Dylan transforms into a storm spirit and two more come. Dylan points his finger at Leo and knocks him of the cliff. Coach Hedge throws his club to Jason and kicks off his shoes but he doesn't have feet, he has hooves. Coach Hedge climbs down the side of the cliff to get Leo. Jason picks up the club throws it at Dylan and hits him in the head. Dylan shoots a blast of lightning at Jason and Jason is knocked down, but not dead. I'm not going to write any more because I'm probably the only one who has finished the book, and I hope didn't give away too much of the story.