Then what followed was always a mystery to the four who had an involuntary part in it. The front wheels took the narrow planks, and clung there as Ned held the steering circle steady. There was a little bump as the rear wheels took the same small boards. There was a crashing, splintering sound and then, before any of those in the car had a chance to realize it, the Fire Bird had whizzed across the bridge and was brought to a quick stop on the other side.

“Whew!” gasped Ned, as he tried to open the paralyzed hands that seemed grown fast to the steering wheel.

“Look at that!” cried Nat, as he leaped from the car and pointed back toward the bridge. “We broke two planks in the very middle, and only the fast rate we clipped over them saved us from going down!”

“What an escape!” cried Tavia as she jumped from her seat.

“Is the car damaged?” asked Dorothy, as she too alighted to stand beside her chum.

“Something happened to the radiator when we hit the rail and broke it,” said Ned, as he saw water escaping from the honey-comb reservoir. “But I guess it won’t amount to much. It isn’t leaking badly. The idea of the county having a picture bridge over a river! Why there’s a swift current here, and it’s mighty deep. Just look at that black whirlpool near the eddy. If we’d gone down there what the machine left of us would have been nicely cooled off at any rate!”

The two boys were soon busy examining the car, while Dorothy and Tavia stood in the road.

“Wasn’t it dreadful!” exclaimed Dorothy. “I do believe we ought not to go auto riding—something happens every time we go out.”

“And to think that I knew about the bridge!” whispered Tavia. “Only yesterday I saw it and noticed how unsafe it was. Then I forgot all about it. Oh, Dorothy! If anything had happened it would have been my fault!”

CHAPTER II
TAVIA HAS PLANS