either, the
case will fall through. Was that car right where it is now when you
first saw it?"

"Say," drawled Sparrer scornfully, "do 'youse tink we had nothing to do
but to pick up a ton or two of scrap and lug it 'round?"

The policeman grinned. "You chaps seem to be equal to about anything,"
said he. "I didn't know but that you had moved the car in getting that
fellow out. Unless he was knocked over here by the collision it appears
that he was on the right side of the road."

"Sure thing," retorted Sparrer. "He was on de right side of de road and
driving easy. De other blokes was burning up de road and tried to make
de turn wide. Dey skidded and side-swiped de little car, and it turned
turtle. Dat's all dey is to it."

He spoke with such an air of finality that the officer looked at him
suspiciously. "I thought you said none of you saw this happen," said he.

"None of us did, but even a cop orter be able ter see what _has_
happened," retorted Sparrer. He walked back up the road a short
distance. "Here's de marks of de chains," he called, "an' dey's all on
de right side of de road. Here's a place where de ground is pretty soft,
but de tracks are clean-cut. If de car had been beatin' it de mud would
have been trown more. Now lamp de tracks comin' de other way."

He led the way around the curve in the opposite direction, pointing out
soft spots where the tracks of a heavy car without chains were clearly
visible. Little globules of mud had been thrown some distance on both
sides, conclusive evidence that the car was being driven at high speed.
The curve was rather sharp, and the tracks showed that the car had
started to take it wide, but at the scene of the accident had been
pulled sharply to the right and had skidded, striking the smaller
machine and causing it to turn turtle. For those with eyes to see the
whole story was written out on the road surface, and yet the tracks were
comparatively faint, because the surface had softened only where the sun
had lain longest, and might easily have been overlooked by those not
trained to close observation.

The officer looked at Sparrer curiously. "Hurry up and grow, sonny,"
said he; "we need you on the force."

Sparrer's retort was interrupted by the clang of a gong as an ambulance
dashed up. The young surgeon made a hasty examination of the two victims
and then as they were lifted into the ambulance he turned to the group
of boys and spoke crisply.

"You fellows h