The gorilla did not like such treatment, and with a snarl it dropped its hold on the captain and turned towards Dave. A moment later it was on the young diver's breast and Dave was doing his utmost to throw the creature off.
It was now the young diver's turn to call for assistance, which he did most lustily.
"I'll help you!" cried the captain, and catching up a stone, he hit the gorilla in the side with it. The creature gave a snarl and sprang back to the top of the rocks. Then it disappeared as suddenly as it had come.
"Ugh!" murmured Dave. "What a horrid beast!"
"Are you hurt?"
"Only a scratch or two."
"We were lucky to get off so easily, lad."
"Is he gone for good!" asked Dave, with a slight shiver.
"I'm sure I don't know."
Each now lost no time in arming himself with a stout club and with a couple of fair-sized and sharp stones. They listened, but could hear nothing of the gorilla.