There was no doubt of it. Echoing footsteps were coming from the old mansion. Faint but unmistakable. They floated out of one of the upper windows, the frame of which had been torn away by the wreckers.
“Someone is in there!” whispered Sim.
“Well, they can stay there for all I’ll ever do to get them out!” gasped Arden. “Come on!”
They ran back to the car, not pausing to listen any further.
Tossing their branches into the rumble seat, the two girls climbed into the roadster. Sim’s trembling foot pressed the starter switch.
“Oh, I’m so glad it went off with a bang like that,” she murmured as the motor chugged into service. Steering rather wildly, Sim shot up the hill and out upon the main road and away from Jockey Hollow.
“What do you think it was?” asked Arden when they had their hearts and breaths under control.
“Haven’t the least idea.”
“We must tell Harry.”
“Of course. He may be able to figure out how noises can come from an old house when there isn’t a single mark in the snow to show that anyone has entered.”