Silver can't die

Silver has been alive for a couple thousand years, and she hates it. Formerly the Executioner of the Gods, unable to die and gifted with mysterious abilities she hides from the world, she becomes a bounty hunter, with an unblemished record. But secrets are stirring, and when the Reaper claims her as his own, shit hits the fan. The Gods are pissed. Can they survive long enough to be together? Or will the whole world fall when the Gods seek what is theirs?