There isn't a fourth book, #1 The lost Hero and #2 The Son of Neptune are the only ones out, #3 Mark of Athena is coming out October 2nd, 2012.
The 4th book in the Heroes of Olympus series by Rick Riordan is titled "The House of Hades." It follows the adventures of seven demigods as they journey through Greece and Rome to prevent Gaea from awakening fully.
The next book, The Son Of Neptune, is coming out October 4th 2011.
The book after the Lost Hero is called The Son of Neptune
October 4th, 2011 is when the book Son of Neptune (From the series: The Heroes of Olympus) came out
The Lost Hero
Yes, it is titled, The Son Of Neptune. It is set to come out Oct. 4th 2011.
Yes, "The Lost Hero" is the first book in the "Heroes of Olympus" series by Rick Riordan. The second book in the series is titled "The Son of Neptune."
Nope
In a book.
The password for Rick Riordan's new book 'The Lost Hero' is 'newhero.'
The book after the lost hero hasn't come out yet, but it's called The Son Of Neptune
The Lost Hero will be released on October 12th, 2010.
You can get the book from online, book stores, or your library.