The First ghost felt a bit awkward. Even though Sam's face is not fully revealed, he could see just from his eyes, that Sam has understood what he is hinting at.
Being exposed this bluntly made him a bit embarrassed, but he took a deep breath and spoke.
"Unless, we finish the task right now. We made a pact that we would catch that Sentient undead ourselves, but the external factors around the forest are making it a bit difficult. The undead creatures in the surroundings are extremely defensive when it comes to this one's defense.
From what we could guess, this sentient undead is actually planning on gathering a large enough undead army so that it can invade on this town.
It has already gained enough power to create undead from corpses. It is only short of an artificial core formation for it to become a complete undead creature and the starting stage of it would be Initial Stage Transcendent stage of Astral Plane.
Which means..?
