“There's no danger, then,” said Fitzhugh with a grin. “See, he's beckoning to us.”

We hastened forward eagerly.

“What is it?” I asked.

“There's no one here,” said Abrams, with a puzzled look.

“Well, this car didn't come alone,” I returned. “Have you asked the engineer?”

“Yes.”

“And the fireman?”

“Yes.”

“And they say—”

“That it's against the rules to talk.”