CHAPTER ELEVEN.
A TERRIBLE DANGER.
Bigley dragged his arm out of the crack and came scuffling back to us, and as soon as he reached the opening we could see that he looked quite pale.
"Why, Big, what is it ?" I cried eagerly.
"Don't frighten him.

He has seen the ghost of an old cock shark," cried Bob Chowne grinning.
"Oh, I don't know," he panted.

"Something soft, and cold, and alive." "Why, it was a jelly-fish," we said together.

"Did it sting ?" "No.

You wouldn't find jelly-fishes in a hole like that.