Sam looked at the large lump of shadow elemental energy in front of him with confused eyes.
The cube still stayed in his hand and now there is no resistance to his observation ability now.
The cube is obviously hollow. The space inside, where the lump used to be is currently empty. And now that the cube is devoid of that energy, it is not glowing at all.
It looked like it was made of stone. A plain old stone. He tried to inject the energy to activate the cube, but it didn't work. The mechanism is in such a way that, it could only be activated from the inside.
He was really interested in the cube. But the full examination had to wait because he has to focus on this lump of energy.
At this moment, an old man came back with the glass cube and the lump finally reacted.