Let's say that Bob, after a really complicated plot, tricked a vampire lord, but get changed into a vampire during the process. Is it possible to turn back into his previous living self?
I can imagine two answers:
A) As he did it to serve a greater purpose, and is helped by a fellow cleric, he ask a powerful deity to give him his humanity back.
B) As A failed, he ask his teammates to kill him, and then cast a spell of resurrection on him.
My question is:
I) A is opinion based. But is there any lore reference to support this hypothesis?
II) Is B mechanically viable? Can you resurrect someone who has been an undead?
III) Bonus: Is there any other means to return to life when you are a vampire?