Since the Percy Jackson books weren't out in Singapore, the Heroes of Olympus probably won't be out in Singapore.
It comes out in spring 2011:]
The second Heroes of Olympus book, The Son of Neptune, is coming out October 4, 2011.
It probably can out there in fall 2011.
House of Hades is coming out in Autumn, probably October
it is coming out this fall of 2011
You can research Heroes of Olympus by going to Google.com and typing in, "Heroes of Olympus".
"The House of Hades" is the fourth book in the Heroes of Olympus series by Rick Riordan and it was released on October 8, 2013.
In the fall of 2011, - specifically the 4th of October. :-)
Blood Of Olympus is the name of the 5th and rumored final book to the series of "The Heroes Of Olympus"
there will be 5 books in the heroes of Olympus
it has already come out it is called The Mark of Athenabook 4 is called The House of Hades and is coming out Oct 2013book 5 is unnamed but it is supposed to be the final book in the Heroes of Olympus series and is coming out in Autumn 2014
Yes. The Heroes of Olympus : The lost hero