"... If that were possible, I would not be worrying about this in the first place." Death had already stopped once in his world for an entire month. Any way to alleviate that burden, create some kind of failsafe to prevent a lack of death from happening again, would have been put into place then after a godling threw the world out of balance.

If there was a way, Thanatos might have had a life beyond his role back home.

"Mortals can find another to do their job. The case is not so simple for gods."