"It wasn't too late for them to set that fire though," rejoined Roy in a low voice.

At police headquarters they were received by two sleepy-looking officials who questioned them at length and said they would be at the stable in the morning to hunt for clews.

"Why not go after them now, while the trail is hot?" inquired Jimsy.

"We have our own ways of doing these things, young man," was the reply, delivered with ponderous dignity.

"Well, we might as well go to bed and get a few hours' sleep anyhow," suggested Roy; "I can hardly keep my eyes open. How about you, Jimsy?"

"I—I—I've had some sleep already you know," rejoined Jimsy, reddening.

Thoroughly tired out from their long day and excitement, the party slept till late the next day. The first thing after breakfast plans for the continuance of the trip were discussed, and the day's program mapped out. This done, the girls and boys set out for the stable to look over the machines.

They found a pompous-looking policeman on guard in front of the place, ostentatiously pacing up and down. On identifying themselves they were at once admitted however. The man explained that he had only been on guard for an hour or two, and that during that time nothing worthy of mention had occurred.

While Jimsy was talking to him Roy and the others entered the stable. An instant later Roy, too excited to talk, came rushing out of the dis-used livery barn.

"What's up now, Roy?" demanded Jimsy, gazing at his chum, who for his part appeared to be too excited to get his words out.