User blog comment:Hyperborean/"The House of Hades" – official expectations blog/@comment-3146930-20130208235613

Has anyone else noticed that the Percy Jackson and the Olympians series takes place over a four year time-span, but so far The Heroes of Olympus only takes place from December to July, and Gaea is supposed to wake up in one month according to The Mark of Athena, meaning another Great Prophecy could come true on Percy's birthday, lol.