In the boy's palm, there was a thumb-sized, ring-shaped green stone, which looked just like a stone ring.
Seeing this, Su Mu took the stone ring, examined it closely, and found it wasn't any special treasure containing space; it was just an ordinary space ring made out of stone.
However, the stone's material was very sturdy. Su Mu tried pinching it with his fingers and found this stone ring to be sturdier than many defensive treasures.
Unfortunately, besides its toughness, Su Mu didn't find any other peculiarities.
After weighing it a bit, Su Mu handed the stone ring back to the boy and said, "Young man, I'm the kind of person who keeps his word. I charge the river crossing fee just once, I won't charge a second time."
"You can take it back."
Hearing this, the boy quickly waved his hand with a smile and said, "No, no, this is something for the senior, consider it... a token of gratitude for saving my life."
