"The ghost!" whispered Roger, all eager for some new excitement.

"Sure as you live!" answered Nat. "That's not human—it's too flimsy and—flighty."

It did seem that the person flitted about in a strange sort of way, first calling, then whistling.

But there was some one waiting.

"There's a carriage," said Joe, crawling under a bush to get a better view of the other path.

The boys held their breath. What if this might be the owner of the park, who would object to their taking the evergreens?

It was well the automobile had been left in a secluded spot. Perhaps the woman would go off without discovering them.

A light carriage entered the driveway. The woman stopped to give some directions. The driver seemed to hesitate. She was urging him to go toward the castle, and he evidently wanted to go out on the main road.