Riordan, Rick 
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There are a total of 432 valid entries on the list.
Author:
Series:
Percy Jackson & the Olympians volume 4.
Average Rating:
4.7 stars
Description:
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.
Author:
Average Rating:
4.8 stars
Description:
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.
Author:
Series:
Percy Jackson & the Olympians volume 1.
Average Rating:
4.6 stars
Description:
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.
Author:
Series:
The 39 clues. Main series volume 1
Average Rating:
4.1 stars
Description:
Dan and Amy Cahill are given the choice of receiving a million dollars or uncovering the thirty-nine clues hidden around the world that will lead to the source of the family's power, but by taking on the clues, they end up in a dangerous race against their own family.
Author:
Series:
Percy Jackson & the Olympians volume 2.
Average Rating:
4.6 stars
Description:
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.
Author:
Series:
The 39 clues. Main series volume 11.
Average Rating:
4.8 stars
Formats:
Description:
Fourteen-year-old Amy Cahill and her younger brother Dan thought they could return to their regular lives when they found the 39 clues. But the Vespers, powerful enemies, will stop at nothing to get the clues. And with the Vespers rising, the world is in jeopardy.