Yes. The Heroes of Olympus : The lost hero
Percy Jackson
george and martha
mary and jonas
Go to imdb.com!
Percy Jackson's brother in the "Sea of monsters" book is, Tyson.
You can find a list of books in the Wikipedia article "Percy Jackson". In the article on "Rick Riordan" you can also find information about other books he wrote. I find the "Kane Chronicles" quite fascinating as well. Actually I only read the first one so far. I didn't read the books in the other series mentioned, other than Percy Jackson. The Percy Jackson series, when finished, should contain 10 books. 9 of them have been written so far; the tenth one is planned to be published in October 2014.
The Lost Hero. It is not exactly a Percy Jackson series but it includes Percy Jackson characters and settings. The main characters of the Lost Hero are 3 demigods Jason, Piper and Leo.
Their names were Kelli and Tammi. They were cheerleaders at Goode High School.
I really love the Percy Jackson and the Olympians books! They are very good books and easy to read. It's a series so here are the books' names: The Lightening Thief, The Sea of Monsters, The Titan's Curse and The Battle of the Labyrinth. I think that you'll really enjoy them!
1. The Lightning Theaf 2.The Sea Of Monsters 3.The Titans Curse 4.Battle Of The Labrith 5.The Last Olimpian and they r all awesome
Tammi and Kelli were the names of the monsters that were posing as cheer leaders in the Battle of the Labyrinth.
Percy Jackson,Annabeth,claire,chiron,luke.