* 원문 숨기기(보기)를 클릭하면 원문을 숨기거나 보이게 할 수 있습니다.
"I hope the compass works," Mo said.
"Ow, ow, ow!" Mandy said. "Me too!
This hook in my fin hurts!"
Cora sprayed ink on the compass.
It opened up right away.
"Hmm," Cora said. "What's that?"
The compass showed a picture of a box.
The box was small and bright blue.
"Maybe it's a treasure box," Mo said.
"A treasure box might have tools.
We could use tools to remove the hook!"
"You could be right, Mo," Cora said.
"Let's follow the arrow.
That's the only way to find out."
The arrow zoomed out of the cave.
The three friends raced after it.
Suddenly the arrow stopped.
It pointed up at something.
Cora looked up.
A big, dark creature shot through the water.
"Ahh!" Mo cried. "It's a shark!"
The three friends darted behind some seagrass.
They watched the big creature swim.
"Oh!" Cora said. "It's not a shark.
It's a human—a diver!"
Mo gulped. "Humans are dangerous!"
Mandy looked scared too.
"Let's get out of here!" she said.