Mark carefully took the crystal and looked at it with a sharp gaze. Then, he searched the house again. Finally, he found a palm-sized machine among the pile of scrap metal.
This machine was square. From the looks of it, it was made of metal. There was a groove in the middle.
Mark placed the crystal in the basket and raised a lever beside him. The colorless crystal immediately trembled, and a faint luster appeared on its surface.
Seeing this, Mark was overjoyed. "It's really an energy crystal!"
Huanhuan was confused. She couldn't understand why he was excited.
Murphy sensed her confusion and took the initiative to explain, "Energy crystals are very precious minerals. The elemental energy stored in them can be used as magic energy. Many things made by the dwarfs use this magic energy."
Huanhuan asked tentatively, "In other words, these crystals are very valuable to you?"
"Yes, they're very valuable," Murphy replied firmly.
