Doc Notice Dirt on Shoes

With a frightened, desperate squeak, one man leaped for the car. He tore at the floorboards under which the guns were hidden.

He was the fellow who had helped Squint murder Jerome Coffern.

Doc knew this. Bits of soft earth clinging to the shoes of that man and Squint had told him the ugly fact. The soft earth came from the grounds of the Mammoth factory.

With a quick leap, Doc was upon the killer. His great, bronze hands and corded arms picked the fellow out of the touring car as though he were a murderous little rodent.

- The Land of Terror (1933) Chapter 2