[Illustration]

[Illustration]





II


The Hopper waited for a limousine to pass and then crawled out of his
hiding-place, jumped into the roadster, and was at once in motion. He
glanced back, fearing that the owner might have heard his departure, and
then, satisfied of his immediate security, negotiated a difficult turn in
the road and settled himself with a feeling of relief to careful but
expeditious flight. It was at this moment, when he had urged the car to
its highest speed, that a noise startled him--an amazing little chirrupy
sound which corresponded to none of the familiar forewarnings of engine
trouble. With his eyes to the front he listened for a repetition of the
sound. It rose again--it was like a perplexing cheep and chirrup, changing
to a chortle of glee.

"Goo-goo! Goo-goo-goo!"

The car was skimming a dark stretch of road and a superstitious awe fell
upon The Hopper. Murder, he gratefully remembered, had never been among
his crimes, though he had once winged a too-inquisitive policeman in
Kansas City. He glanced over his shoulder, but saw no pursuing ghost in
the snowy highway; then, looking down apprehensively, he detected on the