The main characters are Percy, Annabeth, Tyson, and Thalia.
Rick Riordan
Rick Riordan.
rick riordan
It is "The Sea of Monsters"
Rick Riordan.
Polyphemus
Rick Riordan
Windlass
Yes they have it's called Sea of Monsters you should read it sometime.
Why don't you read and find out
The Lightning Thief.
The author of all Percy Jackson books is Rick Riordan.