The Enemy of My Enemy (is Still an Enemy, Just a More Useful One)

Aziraphale is dying and this isn't something Crowley can fix. The angel's only chance is for an archangel to heal him, but Crowley can't exactly waltz into Heaven and ask them to to help his best friend. But maybe if the archangels believed they were rescuing Aziraphale from him? Crowley will have to play this JUST right. Aziraphale's life depends on it.