looked anxiously at one another.

"She is----" began Betty.

Mollie flashed into sight like a seal.

"I-- I found something!" she panted.

"Did you strike bottom?" asked Betty.

"Almost. But that's all right. I'm going down again. There is
something down there. Maybe it's the ghost!"

"Oh, do be careful!" cautioned Betty, but Mollie was already in the
water. She was longer this time coming up, and Betty was getting
nervous. Then Mollie shot into view.

"I-- I found it!" she gasped.

"What?" chorused the others.

"The missing canoe those boys have been looking for! It is down there
on the bottom, freighted with stones. We will get it up for them!"

CHAPTER XXIII

SETTING A TRAP

"Are you sure it is the canoe?" asked Betty, who did not want Mollie
to take any unnecessary risks.