Twelve-year-old Percy Jackson learns he is a demigod, the son of a mortal woman and Poseidon, god of the sea. His mother sends him to a summer camp for demigods where he and his new friends set out on a quest to prevent a war between the gods.

When Camp Half-Blood, the only safe haven for demigods, comes close to being overrun by mythological monsters, Percy must find his best friend Grover, who is prisoner on an island in the Bermuda Triangle, and then set out to save the Camp.

When the goddess Artemis disappears while hunting a rare, ancient monster, a group of her followers joins Percy and his friends in an attempt to find and rescue her before the winter solstice, when her influence is needed to sway the Olympian Council regarding the war with the Titans.

When demonic cheerleaders invade his high school, Percy Jackson hurries to Camp Half Blood, from whence he and his demigod friends set out on a quest through the Labyrinth, while the war between the Olympians and the evil Titan lord Kronos draws near.

From the streets of Rome to the caves of the Kirin and beyond, humans, chimaera, and seraphim will fight, strive, love, and die in an epic theater that transcends good and evil, right and wrong, friend and enemy.

"In his penultimate adventure, a devastated but determined Apollo travels to Camp Jupiter, where he must learn what it is to be a hero, or die trying"-- Provided by publisher.

While the Olympians struggle to contain the rampaging monster Typhon, Kronos begins his advance on New York City, where Mount Olympus stands virtually unguarded. Now it's up to Percy Jackson and an army of young demigods to stop the Lord of Time.

"Eurydice Dimitriou has always been the innocent sister, but she's finally ready to step out of the long shadow cast by her powerful family--and the ex who shattered her heart. Perhaps rough hands on soft skin are exactly what she needs to forget her heartbreak once and for all? Charon Ariti has been Hades's right-hand man for years. He's given everything to the lower city, but now he's ready to take something for himself. He's only too happy to give...

Will the Greek god Apollo, cast down to Earth in the pathetic mortal form of a teenager named Lester Papadopoulos, finally regain his place on Mount Olympus? Lester's demigod friends at Camp Jupiter just helped him survive attacks from bloodthirsty ghouls, an evil Roman king and his army of the undead, and the lethal emperors Caligula and Commodus. Now the former god and his demigod master Meg must follow a prophecy uncovered by Ella the harpy. Lester's...

When a mermaid named Amphitrite arrives at Mount Olympus Academy, she finds herself falling for Poseidon, but his quirks may be too much for her.