Any book where a character is becoming, y'know, something 'more' than person and specifically struggles against that process. Where a person is forced to become a deity, tries relentlessly to put down their own power only to find that they literally can't, a hero trying to reject holy power, or is slowly transforming into an eldritch monster and tries to stop it, etc. As an example, I read a short story once where a character successfully killed an 'unkillable' god, only to realize soon after that they began transforming into that god, and that's how the deity is deathless. For a sillier example, see also, The Santa Clause
by Cajick