gested the young inventor, when he had walked round his craft. "That is what I am worried about more than about the outside."
But, to their joy, they found only a small break in the motor. That was what caused it to stop, and also put the dynamo out of commission.
"We can easily fix that," Tom declared.
"Bless my coffee-spoon!" cried Mr. Damon, who seemed to be running to table accessories in blessings. Perhaps it was because it was so near supper time. "Bless my coffee-spoon! But how did it happen?"
"We were running too low," declared Tom. "I had forgotten that we were likely to get among tall mountain peaks at any moment, and I set the elevation rudder too low. It was my fault. I should have been on the lookout. We must have struck the mountain of ice a glancing blow, or the result would have been worse than it is. We'll come out of it all right, as it is."
"We can't do anything to-night," observed Ned.
"Only eat," put in Mr. Damon, "and we'll have to take our coffee cups half full, for everything is so tilted that it's like topsy-turvey land. It makes me fairly dizzy!"
But he forgot this in the work of getting a
