Rick Riordan

Greek and Roman demigods Nico, Jason, Reyna, Leo, and Piper try to stop Gaea, the Earth Mother, who needs the blood of two demigods sacrificed in Athens--the blood of Olympus--to awaken. Meanwhile, the friends keep having frightening visions of a great war at Camp Half-Blood that could be the end of all of them.

Percy Jackson's hope for a normal senior year is shattered as the gods present him with three quests, beginning with the retrieval of Zeus's goblet, in order to get the necessary three letters of recommendation for college.

Carter and Sadie Kane didn't know how chaotic the world would become in their role to restore order. The Chaos snake Apophis is loose and threatening to destroy earth in three days' time. There is possibly one way to stop Apophis, but it might cost Carter and Sadie their lives.

Magnus Chase has always been a troubled kid. Since his mother's mysterious death, he's lived alone on the streets of Boston, surviving by his wits, keeping one step ahead of the police and the truant officers. One day, he is tracked down by a man he's never met -- a man his mother claimed was dangerous. The man tells him an impossible secret: Magnus is the son of a Norse god. The Viking myths are true. The gods of Asgard are preparing for war. Trolls,...

Nico, the son of Hades, and his boyfriend Will, the son of Apollo, travel to Tartarus, the deepest, darkest part of the Underworld, as they attempt to rescue an old friend.

"A publisher in New York asked me to write down what I know about the Greek gods, and I was like, Can we do this anonymously? Because I don't need the Olympians mad at me again. But if it helps you to know your Greek gods, and survive an encounter with them if they ever show up in your face, then I guess writing all this down will be my good deed for the week. So begins Percy Jackson's Greek Gods, in which the son of Poseidon adds his own magic--and...

Magic, monsters, and mayhem abound when Percy Jackson and Annabeth Chase meet Carter and Sadie Kane for the first time in this short story collection. Presents the short stories: Son of Sobek, Staff of Serapis, and Crown of Ptolemy.

Demi-god Percy Jackson and his friends must journey into the Sea of Monsters to save their camp. But first Percy will discover a secret that will make him wonder whether being claimed as Poseidon's son is an honor or a cruel joke.

Four short stories plus original art, interviews, puzzles, and games, reveal new insights into the world of Percy Jackson and the other heroes of Olympus.

The Greek god Apollo, cast down to earth as the ungifted human teenager Lester Papadopoulos, and his demigod friends must go through the Labyrinth to find the third emperor (and an Oracle who speaks in word puzzles) somewhere in the American Southwest.