overcast and twilight was falling. A cold wind blew in from the sea.
The motorboat went some distance down the shore and then they turned and, keeping well out in the bay, went on up past the cliff once again. They kept a sharp eye on the location of the cove, and in spite of the fact that they knew just where it was they were scarcely able to distinguish the narrow opening in the rocks.
"No wonder the place hasn't been heard of more often!" Frank said. "It looks like an unbroken wall of rock from this far out."
"You've got to be careful around here, Tony," cried Joe. "First thing you know we'll hit the rocks and be smashed."
"That's right," added Frank. "It's pretty dangerous so close to the cliff."
"You leave it to me," came from their schoolmate. "I know how to handle this boat."
It was true, Tony did know how to handle the motorboat; yet several times they came perilously close to the rocks over which the waves were dashing. In fact, once there came a slight bump followed by a grating sound which made the hearts of all the boys leap into their mouths.
"Narrow squeak, that," admitted Tony. "I guess I'd better keep out a little farther, after all."
"I certainly should," answered Frank.
