User blog comment:Hyperborean/"The House of Hades" – official expectations blog/@comment-4902593-20130115120440

For the new Percy Jackson story, that is the Singer of Apollo, I think the title may refer to one of those 12 gold automatons (Keledones) which Hephaestus gave to Apollo. Hephaestus gave them life after they were created and their songs were beautiful as that of the Sirens. I bet that the story is about one of them getting haywire or stolen or lost and Apollo sent Percy to search them.

I don't like the story preview because Percy is seriously being embarassed in it. I pity him.