no shaft of light, but some white body, shaped like a tall, thin man, draped in a white garment. The long arms waved to and fro. There was no semblance of a head.
"You and Mr. Parker go right toward it, slowly, Mr. Damon," advised Tom. "Mr. Jenks and I will make a circle, and get in back. Then, if it's anything alive we'll have it."
The "ghost" continued to advance. Tom and the diamond man stole off to one side, their buckskin moccasins making no sound. Mr. Damon and the scientist went boldly forward.
This movement appeared to disconcert the spirit. It halted, waved the arms with greater vigor than before, and seemed to indicate to the adventurers that it was dangerous to advance. But Mr. Damon and Mr. Parker kept on. They wanted to give Tom and Mr. Jenks time enough to make the circuit.
Suddenly the stillness of the night was broken by a low whistle. It was Tom's signal that he and Mr. Jenks were ready.
"Come on! Run!" cried Mr. Damon.
The scientist and the eccentric man leaped forward.
The "ghost" heard the whistle, and heard the spoken words. The thing in white hesitated a
