User blog comment:Hyperborean/"The House of Hades" – official expectations blog/@comment-5774152-20130221034225/@comment-2079715-20130308114744

Well, it is stated clearly, Frank will die when his stick burns out. But I'm sure we will discover something new related to that in HoH. After all, it's time for his and Hazel's POV. Frank/Hazel/Leo is probably the biggest mystery right now. :) 1000 things could happen, and none of them.