According to the rules for Revenants:
A revenant’s existence is fueled by its hatred for its murderer. As
long as the murderer exists, the revenant exists. If the murderer
dies, the revenant is immediately slain.
So when the murderer fights his revenant, and brings the revenant down to 0 HP what does happen to the revenant? Is it really killed / slain, or does it just vanish into thin air, and a new revenant rises from the corpse searching for its murderer? If it isn't slain, how can the murderer slay it? Is there any way at all?
Best Answer
It's subject to GM discretion
That seems to have two posible interpretiations:
With number one the answer it's simple, punch it until it stops moving!
Number two makes things more complicated, you might need to be on the run for the rest of your live or maybe you'll need to use some kind of divine magic to destroy it for good. You may be able to dispose of it with the first solution, but this interpretation suggests that the revenant will reform in some time and continue its chase.
The rules seem to suggest the first interpretation due to the lack of any regeneration/reforming rules. But as always the last word comes from the GM. He might rule interpretation number two and say the revenant after "destroyed" will reappear after XdY days/months/time unit.