Heinrich handed the paper to Bob. It was a sheet evidently torn from a pad and in a large scrawling hand was written the following: "We warned your boss to keep his car at home; now tell him to keep his son there, too." No name was signed and Bob turned the paper over and looked at the opposite side. A picture of an alligator was drawn there. Bob recognized the sheet as similar to the one that he and Hugh had found in the deserted house and the detective had taken from them; apparently it had been torn from the same pad.
"Where did you get this, Heinie?" he demanded.
"I go up to the house to see Lena," said Heinrich. "That is maybe a half-hour ago. I only stay there a few minutes and when I come back here is this."
"Lying on the floor?"
"Yes."
"Have you no idea who sent it?"
"How should I?" exclaimed Heinrich.
"Somebody must have slipped in here while you were absent and left it," said Bob. "There are queer things happening around here these days, Heinie."
"There is," the chauffeur admitted solemnly.
"Do you mind if I keep this paper?"