User blog comment:Hyperborean/"The House of Hades" – official expectations blog/@comment-10750309-20130714144850/@comment-3146930-20130714152556

As far as I know it is fixed. Back in The Lost Hero, everyone was sad over Beckendorf's death and Leo was introduced to this curse. However, by the end of the book he found Bunker 9, fixed Festus, and got the cabin to work on the Argo II. Plus when he showed them his fire powers, they all took it as a sign of good things to some and it lifted them out of their slump.