Deletion of The Heroes of Olympus

Comment: per #Not yet published books: "''Articles about books that are not yet published are strongly discouraged''" This is six months off publication: the references are two fansites and three bookstore preorder listings (actually two - Amazon is listed twice). I don't think there is enough independent comment and interest for this to come under the exceptions in that clause
Stance: delete
Cited policy: Wikipedia:Notability (WP:BK)

Comment: No longer violation of 
Stance: comment
Cited policy: Wikipedia:What Wikipedia is not (WP:CRYSTAL)