Percy Jackson and his friends undertake a perilous voyage to save their summer camp in this modern-day adventure with a Greek mythology twist. Makes Greek mythology relevant and fun for modern readers. Features a main character with learning differences. An exciting adventure quest full of monsters and gods. After a summer spent trying to prevent a catastrophic war among the Greek gods, Percy Jackson finds his seventh-grade school year unnervingly quiet. His biggest problem is dealing with his new friend, Tyson-a six-foot-three, mentally challenged homeless kid who follows Percy everywhere, making it hard for Percy to have any "normal" friends. But things don't stay quiet for long. Percy soon discovers there is trouble at Camp Half-Blood: the magical borders that protect Half-Blood Hill have been poisoned by a mysterious enemy, and the only safe haven for demigods is on the verge of being overrun by mythological monsters. To save the camp, Percy needs the help of his best friend, Grover.