“Well, I’ll have to be running along, Mr. Vancouver,” he said, glancing at his watch. “I don’t want to keep you at an hour like this. I just wanted to run down and see if we had alarmed you, but as long as we haven’t, why, I’ll be moving.”

“I didn’t hear a sound, so I’m all right. It was real nice of you to drop down to see if I was all right, and I sure appreciate that. An old cripple like me doesn’t get much chance to see the world or talk with anyone, so it did me good to have you stop in.”

“That’s fine,” replied Don, his eyes busy at the task of looking around the room in a guarded manner. “Say, Mr. Vancouver, as I told you before, we did quite a bit of running tonight. And gee, I’m just about burning up with thirst. I’m thinking with pleasure that you have some of the finest water I ever tasted here.”

“I’ll get you a drink in just a shake,” promised the man, seizing his wheel.

“Don’t bother. Can’t I get it myself?” asked Don, wishing to gain a look at the kitchen.

“Won’t take me a second,” said the other, and spun around in his chair, aiming at the doorway that led into the back room. With the speed and accuracy of an arrow he passed through it and was gone.

And almost immediately Don thanked his lucky stars that he had not been permitted to go out into the other room himself. For something that had been hidden by the chair of the cripple was now disclosed. In the corner rested a pair of shoes, and these shoes were covered with mud!

Not the slightest doubt about it. Red and black mud, soft and wet, a fact that he could determine without touching them. A band of light from the lamp shone on them and revealed the evidence plainly. That explained the man’s damp socks. Yet Don’s brain was unable to fully take it all in.

“Is it possible that this man is not an invalid after all? Or has the real ghost been here, and maybe is hiding here right now? That may be possible.”

But certain things pointed an unerring hand at his host. His brow was moist, as of one who had been running. His breath had been rapid, and now his muddy shoes betrayed him. For not an instant longer did Don doubt that the man could walk and run, and the crippled state was nothing but a ruse.