While Alexander, his wife, and Sarah left, Zayn his two Human Spirits spent their time collecting the Cores of the Undead from the Goblin Skeletons without even realizing that he had escaped death by a hair's breadth.
He was spared even though he had enslaved the souls of two humans in their Spirit form, which was essentially what happened when a Spirit was materialized out of the Essence of a Soul.
Zayn didn't feel bad about the fact that his Spirits were enslaved. They had been too weak to kill him and ended up becoming his subjects as a result. The strong reigned supreme and the weak were at the mercy of those who defeated them. It was as simple as that!
"If Goblin Skeletons escaped from the Undead Caves, the other Undead are either outside already, or they will follow soon," Zayn mumbled to himself, and his expression soured at the realization.
'So I won't be able to avoid fighting more of them…that's troublesome…'