Roland played with the blue magic power ball in his hand.
It was weightless and floated in midair after he released it.
It was exactly the "central chassis" that the floating city needed, and the foundation for the floating city to rest on.
It was also what Mordenkainen called a magic power brick.
Roland, on the other hand, preferred to call it "solid magic power," which sounded more academic.
It was extremely small and only the size of Roland's thumb, but it was already vaguely absorbing the magic power nearby.
Of course, because it was too small, it only absorbed a little environmental magic power.
"Can the gravity caused by an object of great mass capture the objects around it?" said Roland to himself.
He tried to describe what he saw with scientific concepts.
"Is it only absorbing magic elements because it's a dense, solid form of magic elements?"
