Don't you hate it when you are reading a book and it's part of a book series and you have to wait FOREVER for the next book to come out. Then you get the next book and you can't remember where it left off? Well I'm going to summarize a book in a series that I've read so that when I get the next book I can look at my summary and know what happened. Warning, the following contains spoilers!
The Heroes of Olympus
The Lost Hero - Rick Riordan
The Son of Neptune - 10/11/11
Jason wakes up on a bus and has amnesia. He is sitting with a girl named Piper that says she's his girlfriend and a boy named Leo that says he's his best friend. They get attacked by storm spirits and Coach Gleeson helps them and reveals to them he's a satyr. After Coach gets kidnapped, Annabeth and Butch come in Pegasi. Annabeth was sent a vision that she would find someone with one shoe that would lead her to find Percy. Apparantly Percy has gone missing. Jason, Piper & Leo are then brought to Camp Half Blood. Leo is the son of Hephaestus, Piper is the daughter of Aphrodite and Jason is the son of Zeus and brother of Thalia.
They receive a quest to rescue Hera. Leo re-awakens Festus, a dragon that was mentioned in the Percy books. They run into Boreas (the north wind), cyclopes, Medea, King Midas, werewolves and Lycaon, Aeolus (Lord of the Wind). They meet up with Hunters of Artemis and save Piper's father and Hera, who were both being used to raise the giant Porphyrion (Gaea's idea).
Jason gets some of his memory back and realizes that he is from Camp Half-Blood of the Roman counterpart near San Francisco. Hera switched him and Percy. So now Percy is at the Roman Camp Half-Blood with no memory. So now Jason, Piper, Leo and Annabeth have to find that half-blood camp to convince some to come on the prophesied group of seven quest to defeat the giants.