User blog comment:Hyperborean/"The House of Hades" – official expectations blog/@comment-2079715-20130302084701/@comment-2079715-20130304220901

Actually, Mars said to Frank in his family mansion that Gaea fears him the most. All others have weaknesses except Frank. Not counting his stick problem. And Leo is the only one whos life was changed by Gaea. Leo is the only one who saw Gaea when he was 8. He knows her the best. So to speak. So Frank AND Leo could be the Fire from Prophecy.