Editions of The Lost Hero (Heroes of Olympus, Book 1) (Prelude Edition)

Published Oct. 10, 2010 by Disney publishing worldwide.

English language

Published Jan. 23, 2010 by Penguin Books, Limited.

Published Jan. 23, 2010 by hyperion books.

Published Jan. 23, 2010 by Disney Hyperion Books.

Spanish language

Published Jan. 23, 2013 by Knopf Doubleday Publishing Group.

German language

Published Jan. 1, 2010 by Scholastic.