The Lost Hero by Rick Riordan
Rick Riordan introduces new demigod heroes in latest mythological adventure series. . . With another prophecy, more enemies, and three new demigods, author Rick Riordan is back and kicks off his new series, The Heroes of Olympus, with The Lost Hero.
On the way to the Grand Canyon, a classmate turns into a storm spirit and tries to attack Jason, Leo, and Piper. The leader on the bus then turns into a satyr, but is captured while protecting the kids . After this startling encounter, a girl named Annabeth brings them to a camp called "Camp Half Blood" where they all are told that they are half-human, half-god. Piper is the daughter of Aphrodite, Leo is the son of Hephaestus, and Jason is the son of the most powerful god, Zeus. As they get used to the camp customs, they are sent on a mission to help the gods protect the western territories.
Will they succeed on their first task, get destroyed by unknown forces, or will they get hung up by the excitement and confusion of their past? To find out, pick up The Heroes of Olympus Book One: The Lost Hero at your local library or bookstore. This suspense-packed book is a page-turner and very hard to put down. Fans of Rick Riordan's Percy Jackson series will enjoy the foretelling of the new prophesy. I recommend this book to anyone who has a sweet spot for adventure.
— Scholastic News Kid Reporter, Wanjiku Gatheru
UPDATE: Book#2: The Son of Neptune is coming out in October. Get a sneak peek here.