The gods of Olympus are alive in the 21st Century. They still fall in love with mortals and have children who might become great heroes, but most of these children meet horrible fates at the hands of monsters by the age of twelve. Only a few learn the truth of their identity and make it to Half Blood Hill, a Long Island summer camp dedicated to training young demigods. Such is the revelation that launches young Percy Jackson on a quest to help his real father, Poseidon, avert a war among the gods. With the help of Grover the satyr and Annabeth the daughter of Athena, Percy must journey across the United States to catch a thief who has stolen the original weapon of mass destruction - Zeus’ master bolt. Along the way, they face a host of mythological enemies determined to stop them. Most of all, Percy must come to terms with a father he has never known, and an Oracle that has warned him of betrayal by a friend.

Percy Jackson has had an unnervingly quiet school year. But then he discovers that the magical borders protecting Half Blood Hill are failing. Unless something is done, the camp will be attacked by demons and monsters. The only way to restore power to the camp's borders is to find the mythical Golden Fleece. And the only person who can undertake this dangerous quest is Percy...

It's the last Friday before the winter holidays but Percy Jackson isn't at school, he's battling the fearsome Manticore (half human, half lion), which in itself isn't ideal... but with Annabeth missing and the goddess of the hunt held captive, things get a whole lot more serious...

The last thing Percy wants to do on his summer holiday is blow up another school. But after doing exactly that, he is forced to flee to Camp Half Blood, where he finds that all is not well. His arch-enemy Luke is looking for a way to invade the camp via an ancient labyrinth and if he succeeds, thousands of bloodthirsty monsters will attack. So it’s goodbye sunshine, hello darkness as Percy and his friends descend into the terrifying underground...

Most people get presents on their sixteenth birthday. Percy gets a prophecy that could save or destroy the world. That’s how it goes when you’re the son of Poseidon, God of the Sea. According to an ancient prophecy, bad things will happen when Percy turns sixteen – because he’s the one who gets to decide the fate of the entire world. But no pressure.

In these top-secret files, Camp Half-blood's senior scribe, gives you an inside look at the world of demigods that NO regular human child is allowed to see. If you’re armed with this book, you’ll have everything you need to know to keep you alive in your training. Essential reading for all young demigods!