Yes, The House of Hades in Fall 2013
Yes, Rick Riordan continued to write books in the Heroes of Olympus series after "The Mark of Athena." The next book in the series is called "The House of Hades."
Mark of Athena by rick Riordan is coming out October 2nd 2012
The book after "The Mark of Athena" is "The House of Hades," which is the fourth book in Rick Riordan's "Heroes of Olympus" series.
"The Mark of Athena" by Rick Riordan was released in India on October 2, 2012.
I think it already is, now that Mark of Athena is out!
He is writing The Mark of Athena, the third book in the Heroes of Olympus series.
"Heroes of Olympus, The , Book Three: The Mark of Athena" has a release date of October 2, 2012 .
i think he hate not making are working on his book
Yes, the Blood of Olympus
The third book of The Heroes of Olympus series by Rick Riordan, titled The Mark of Athena has not yet been released.
Yes the Son of Neptune and book three comes out fall 2012 and it's calledd the Mark of Athena
yes, rick Riordan will start a new Percy book i near thanksgiving!:):):):):):):):)
One book that I know Rick Riordan will be publishing is the second book in The Heroes of Olympus, and that will be out in the Fall of 2011.