After learning that the father he never knew is Poseidon, God of the Sea, Percy Jackson is transferred from boarding school to Camp Half-Blood, a summer camp for demigods, and becomes involved in 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.

The long-awaited prophecy surrounding Percy Jackson's sixteenth birthday unfolds as he leads an army of young demigods to stop Kronos in his advance on New York City, while the Olympians struggle to contain the rampaging monster, Typhon.

"The Greek and Roman demigods will have to cooperate in order to defeat the giants released by the Earth Mother, Gaea. Then they will have to sail together to the ancient land--Greece itself--to find the Doors of Death"--

"The Greek and Roman demigods must simultaneously prevent the earth mother, Gaea, from waking and stop war from breaking out at Camp HalfBlood"--

"Society darling Persephone Dimitriou wants nothing to do with her mother's ambitions. She has plans to leave the ultra-modern city of Olympus and start her life far away from the backstabbing and politics. But that all goes down the drain when her mother ambushes her with an engagement to Zeus, the dangerous power behind their glittering city's dark facade. With no options left, Persephone flees Olympus and makes a devil's bargain with a man she...

"Persephone is the Goddess of Spring in title only. Since she was a little girl, flowers have only shriveled at her touch. After moving to New Athens, she hoped to lead an unassuming life disguised as a mortal journalist. All of that changes when she sits down in a forbidden nightclub to play a hand of cards with a hypnotic and mysterious stranger. Hades, God of the Dead, has built a gambling empire in the mortal world and his favorite bets are rumored...

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.

"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? ... Now the former god and his demigod master Meg must follow a prophecy uncovered by Ella the harpy. Lester's final challenge will be at the Tower of Nero, back in New York. Will Meg have a last showdown with her father? Will this helpless form of Apollo have to face his arch-nemesis, Python?...