Sam tried all kinds of experiments with that stone. But no matter what he didn't touch it at all.
After some experiments, he realized that this flame has a decaying effect. But it is not like the one his decaying green flame he had. It is more like it is accelerating the lifetime of the object to make it decay.
After trying its effect on many objects, he started emitting light elemental energy and used the healing techniques against it.
All of a sudden, the grey stone which was surrounded by the eerie smoke completely disappeared as if it was never there.
It turned into an ordinary stone. Sam was surprised a bit and once again threw some grass. Nothing happened.
He was extremely surprised.
He has a feeling on why they didn't attack at night now.
He came out of the divine dimension and went to the backyard of the house. He waved his hand and the grey stone flew out and fell in the grass. But it is just like any other ordinary stone. There is nothing wrong with it.
