The Battle of the Labyrinth
The fifth book already came out on May 4th, 2009. And there will be a Percy Jackson and the Olympians: The Lightning Thief movie coming out on February 12, 2010.
1. Percy Jackson and the Lightning Theif. 2. Percy Jackson and the Sea of Monsters. 3. Percy Jackson and the Titan's Curse. 4. Percy Jackson and the Battle of the Labyrinth. 5. Percy Jackson and the Last Olympian. After this, the series ends and a new one begins, which is Heroes of Olympus. It still involves Percy Jackson and his friends, but there are a bunch of new characters and it involves a fair bit of Roman mythology aswell. It follows a new story line, with a whole new threat. (No longer is Kronos the threat.) There are two out in the Heroes of Olympus series as far as I know: 1. Heroes of Olympus: the Lost Hero. 2. Heroes of Olympus: the Son of Neptune. Hope that helped!
There will not be a fourth book in the series because the series is a trilogy.
THere is no fourth book. The series of Seekers is composed of three books.
It is already out and it is called Closer 4th book of the series.
Halo: Ghost of Onyx is the 4th book in the Halo series.
The first to watch Percy Jackson and the Olympians The Lightning Thief was all the 4th, 5th, and 6th graders at St. Boniface School in Fort Smith, AR. It was a school field trip to go see the movie. It was also a Battle of the Books ( B.O.B.) book, and so they went to see it. It was on February 12, 2010.
It is the 4th book in the Twilight series.
The fourth book of the Power of Three series is called Eclipse.
Breaking Dawn is the 4th book in the Twilight series. It is already out. Hope this information was helpful. X
Probably not
The Percy Jackson and the Olympians series (The Lightning Thief, The Sea of Monsters, The Titans Curse, The Battle of the Labyrinth, and the Last Olympian), The Heroes of Olympus(The Lost Hero, The Son of Neptune[coming out October 2011]),The Kane Chronicles (The Red Pyramid, The Throne of Fire, Thrid Book coming in Spring 2012), 39 Clues: Maze of Bones.