"Is that some one ahead of us, or behind us?" suddenly asked Dick, coming to a halt.
"I don't hear anything," said Innis.
"Me either," added Paul.
"Walk on a bit and then listen," suggested Dick.
"There is some one sort of keeping time to our footsteps, fellows," spoke Paul a little later.
"But are they ahead or behind us?" asked Dick. "I've been hearing it for some time."
"Ahead of us," said Innis.
"Behind," was Paul's opinion.
The three came to a halt in the roadway and listened. This time, instead of the footsteps becoming silent, they were more plain.
"They're coming," whispered Paul.