The Invisible Intruder 10 [RARE BOOKS]

THE GHOST BOAT...

It was a beautiful day. Nancy and Ned had gone a quarter of a mile upstream, when Nancy exclaimed, "Ned! The phantom canoe is just ahead of us!"

They began to paddle at breakneck speed after it.

This time, would they find the place where the mystery craft was hidden?

Suddenly Nancy and Ned found it almost impossible to paddle. It was as if some terrific pressure was pulling them backwards. The next moment, the canoe overturned, and the two plunged deep into the lake...