Book+Series

The books go from left to right in order. Percy is 12 years old in the first book, 13 in the second book and so on. Percy is with his two friends Grover (a satyr which is half man half goat) and Annabeth The daughter of Athena. The big three (Zeus, Poseidon and Hades) thought that on Percy's 16th birthday that hes going to make a decision that will save Olympus or destroy it. There is always a second meaning to everything so read this series.