waters of the lake, gave a shriek.

"Oh, save me!" came from her, and then she went over, with a loud
splash.

Joe was startled, and the ladies left in the boat set up a wail of
terror.

"She will be drowned!"

"Oh, save her! Save her, somebody!"

"It is my fault!" shrieked the plump young lady. "I tipped the boat
over!"

Joe said nothing, but looked over the side of the boat. He saw the body
of Mabel Mallison not far away. But it was at the lake bottom and did
not offer to rise.

"It's queer she doesn't come up," he thought.

Then he gave a second look and saw that the dress of the unfortunate one
was caught in some sharp rocks. Without hesitation he dived overboard,
straight for the bottom.

It was no easy matter to unfasten the garment, which was caught in a
crack between two heavy stones. But at the second tug it came free, and
a moment later both our hero and Mabel Mallison came to the surface.

"Oh!" cried two of the ladies in the row-boat. "Is she drowned?"