However, even though the Undead King did consider such an idea back then, the moment he thought about his situation, he basically dismissed that thought from his mind.
Even if the hatred towards those furballs was immense, and he cared deeply about the misfortune he suffered at their hands, he knew he didn't have the time for revenge.
Chasing those furballs down and killing them off would indeed be a way to vent for the Undead King. However, he knew clearly that while it might relieve some anger, finding the furballs and exterminating them all would take time, and clearly, in the current situation, he didn't have that time.
Or it could be said directly, even if the Undead King wanted to waste time on venting his anger, Zhou Tian would not let him do so.
