Chen Zhao dove underwater.
He saw the injured and panicked White Ma. He also saw that Black Ma had bitten the shark's fin, but it easily shook Black Ma off.
It was a nine-foot-long tiger shark, at least three times the size of them. Chen Zhao kicked and swam faster toward the shark.
It attacked White Ma again, but Chen Zhao punched the shark's gill with all his might. He was underwater though, so his punch was half as strong. However, he still hit the gill.
The shark was surprised and dove to the side. It didn't leave. Instead, it turned around and swam back. It seemed to really like White Ma's smell or taste.
Chen Zhao changed his tactic. Calculating the moment that the shark came back, he grabbed onto the fin.
Fins were the shark's Achilles heel. No matter how the shark struggled, Chen Zhao didn't let go. It tried to turn and bite him, but he pressed against the gill so it couldn't reach.
By now, Black Ma had entered the fight too.
