"Don't upset, please, whatever you do," urged Dorothy.
"I'll try not to," promised Harry.
When they got out of the sheltered cove they felt the full force of the wind, and for a moment even Nan, who had been on the boat many times, felt a bit timid. The Ice Bird tilted to one side, the left hand runner raising high in the air.
"Oh!" screamed Dorothy. "We're going over!"
"No, we're not! Sit still!" cried Bert, grasping the tiller, which Harry was not holding just right. By turning the ice-boat to one side the wind did not strike it so hard, and the craft settled down on the level again.
"There! That's better!" exclaimed Dorothy, who had grabbed hold of Nan.
"Oh, that's nothing," said Nan. "Bert and I are used to that."
But as the ice-boat proceeded it was evident that those on her were not going to have an easy time to get to the Bobbsey dock. The wind blew harder and harder, and the sail seemed ready to rip apart. It took both Bert
