I'm not sure if Hellhounds ever die, to be honest. I have the weird impression that he's going to be around for as long as Adam is around, and as for Adam's lifespan, well, that's a fascinating question in and of itself...

I wrote to be an inset for A Crown of Stars, to be honest; even though it can be read as completely unconnected, I needed some sense of weight and momentousness to keep the tone right where I wanted it. I do wonder what the authors think these kids end up doing with their lives!