@Tobietobie I think there are limits to how far th snake can extend the others life. He can give the grandfather either a bit more time/cure him long enough they can say a proper goodbye. Before this he'd have never be able to talk to his grandfather.
@Tobietobie he said he could only cure his illness,and stated that he couldn't extend his lifespan I'm pretty sure he said it earlier in the story when the MC and ML first me