have they been themselves or do they get reversed Lazarus pit personalities? And hasn't The Hood's source of magic changed recently? Regardless though there has never been any doubt in my mind that Frank is crazy.
No, I don't think their personalities have changed.
Remender said he wanted it to be ambiguous as to why he killed his family.
"It seemed important to me that readers draw their own conclusions for why Frank did what he did. Did he force Firebrand to end his family because he knew they were full of evil thanks to the Hood's magics? Or did he have them incinerated because he no longer felt he could be part of their world?"