User blog comment:Hyperborean/"The House of Hades" – official expectations blog/@comment-5247339-20130918165545/@comment-17724486-20130918174329

Such an awesome sneak peek! It sounds like RR actually has gone pretty dark in this one, Percy and Annabeth seem to be in really bad shape. And yeah, it does look like an official picture right at the end. Demons or monsters trying to come through the Doors of Death possibly? Cannot wait for the book! 19 days!!