"As I came out I saw a man dart out of the camp. He fell over the rope just to the right of the tree there at your back. Perhaps we may be able to find his trail."

Taking a brand from the fire, Tad stepped over to the spot he had indicated and holding the torch down near the ground nodded to his companions who had pressed up close to the rope.

"The bushes certainly are broken down there," declared Ned.

"Maybe that's where the Professor tried to turn a somersault," suggested Stacy.

"What were you trying to do, Professor?" chuckled Ned.

"We will leave that for future discussion," answered Professor Zepplin dryly. "Someone surely has been floundering about here, that is a fact."

"This is where I saw him fall," affirmed Tad.

"Tad, what sort of person was he? How did he look?" questioned the Professor.

"I was unable to see. It was too dark here."

"Maybe it was the ghost," suggested Stacy.