Tom Swift and His House on Wheels by Victor Appleton

Tom Swift, ever on the alert when driving any of his machines, from the humble motorcycle to the more complicated apparatuses of the air or undersea, lived up to his name in bringing the House on Wheels to a quick but skillful stop as Ned Newton uttered the exclamation of warning.

It was just in time, for the front wheels were almost against a big rotten tree that the gale had blown down across the highway leading toward Dismal Mountain. Tom's attention had been taken momentarily by some of his dashboard gages, so he had not seen the sway of the tree before it fell. But Ned's quick eyes had sensed the danger and had given ample warning.