“The ghost of the castle, for instance?” Brad asked, giving him a sidelong glance.

“Quit kidding me.”

“You did think you saw someone.”

“Sure,” Dan said soberly. “It might have been one of the Cubs, only I didn’t think so. You know, Brad, I’ve had a queer feeling ever since we came here.”

“As if someone were watching us?”

“That’s right, Brad. I know it sounds silly.”

“It isn’t silly,” the older boy replied soberly. “I’ve had the same sort of feeling myself.”

“I suppose my imagination was stirred by finding a fire inside the castle,” Dan said. “And then that arrow in the target. It never did match any of the ones we were using.”

“Someone is hiding out here all right,” Brad admitted with sudden conviction. “Suppose we amble around and see if we can find anyone. No use worrying the other Cubs.”

Without attracting attention to themselves, the two boys walked over to the bushes where Dan had seen movement.