User blog comment:Hyperborean/"The House of Hades" – official expectations blog/@comment-15110282-20130812002837/@comment-3146930-20130813032935

I'd once again like to bring up my "other Titan's may help Percy and Annabeth" theory. I mean Gaea was the one responsible for their eventual defeat, as she was the one that asked Zeus to take Kronos' place. The Titans in Tartarus may want to get back at her.