"It is 'most supper time," said Nan, as the whistle at the saw-mill blew for six o'clock. "We'll have to go home soon, Bert."
"Oh, let us take one more trip," pleaded her twin brother.
The other boys and girls had gone and they were left alone. To please Bert, Nan consented, and their course was changed so that the Ice Bird might move down the lake instead of across.
It had grown dark and the stars which might have shone in the sky were hidden by heavy clouds.
"Not too far now, remember," said Nan.
The wind had veered around and was blowing directly down the lake, so, almost before they knew it, the Ice Bird was flying along at a tremendous rate of speed. Nan had to hold on tight for fear of falling off, and had to hold her hat, too, for fear that would be blown away.
"Oh, Bert, this is too fast!" she gasped, catching her breath.
"It's just glorious, Nan!" he cried. "Just hold on, it won't hurt you."
