Someone must have been inside this place before they got back." Fido Norton was by this time on his knees outside the larger door.

"Here are footprints," said he; "two, three,--here's another one.

Give me another match." "Those were made by our own fellows," said Nick, inspecting the ground, half interested.

"Can't you see they were made by scout shoes?
Do you think a boy scout stole the car?
Here are some others, too, S.N.'s, and Safety First's, I suppose." "Why should they step outside the big door ?" Norton asked.

"These are fresh footprints, all of them.