we established a strict watch about the Phelps mausoleum and the swamp which lay across the road, not a difficult thing to do as far as concealment went, owing to the foliage. Still, for the same reason, it was hard to cover the whole ground. In the shadow of a thicket we waited. Now and then we could hear Schaef scouting about in the underbrush, crouching and hiding, watching and guarding.
As the hours of waiting in the heavily laden night air wore on, I wondered whether our vigil in this weird place would be rewarded. The soughing of the night wind in the evergreens, mournful at best, was doubly so now. Hour after hour we waited patiently.
At last there was a slight noise from the direction opposite the mausoleum and toward the swamp next to the cemetery.
Kennedy reached out and drew us back into the shadow deeper. "Some one is prowling about, approaching the mausoleum on that side, I think," he whispered.
Instantly there recurred to me the thought I had had earlier in the day that perhaps, after all, the five thousand dollars of hush money, for whatever purpose it might be extorted, had been buried in the swamp by Mrs. Phelps in her anxiety. Had that been what she was concealing? Perhaps the blackmailer had come to reconnoitre, and, if the money was there, to take it away.
Schaef, who had been near us, was sniffing eagerly. From our hiding-place we could just see her. She had heard the sounds, too, even before we had, and for an instant stood with every muscle tense.
Then, like an arrow, she darted into the underbrush. An instant later, the sharp crack of a revolver rang out. Schaef kept right on, never stopping a second, except, perhaps, for surprise.
"Crack!" almost in her face came a second spit of fire in the darkness, and a bullet crashed through the leaves and buried itself in a tree with a ping. The intruder's marksmanship was poor, but the dog paid no attention to it.
"One of the few animals that show no fear of gunfire," muttered Kennedy, in undisguised admiration.
"G-r-r-r," we heard from the police-dog.
"She has made a leap at the hand that holds the gun," cried Kennedy, now rising and moving rapidly in the same direction. "She has been taught that a man once badly bitten in the hand is nearly out of the fight."
We followed, too. As we approached we were just in time to see Schaef running in and out between the legs of a man who had heard us approach and was hastily making tracks for the road. As he tripped, she lunged for his back.
Kennedy blew shrilly on a police whistle. Reluctantly, Schaef let go. One could see that with all her canine instinct she wanted to "get" that man. Her jaws were open, as, with longing eyes, she stood over the prostrate form in the grass. The whistle was a signal, and she had been taught to obey unquestioningly.
"Don't move until we get to you, or you are a dead man," shouted Kennedy, pulling an automatic as he ran. "Are you hurt?"
There was no answer, but as we approached, the man moved, ever so little, through curiosity to see his pursuers.
Schaef shot forward. Again the whistle sounded and she dropped back. We bent over to seize him as Kennedy secured the dog.
"She's a devil," ground out the prone figure on the grass.
"Dana Phelps!" exclaimed Andrews, as the man turned his face toward us. "What are you doing, mixed up in this?"
Suddenly there was a movement in the rear, toward the mausoleum itself. We turned, but it was too late. Two dark figures slunk through the gloom, bearing something between them. Kennedy slipped the leash off Schaef and she shot out like a unchained bolt of lightning.
There was the whir of a high-powered machine which must have sneaked up with the muffler on during the excitement. They had taken a desperate chance and had succeeded. They were gone!
Chapter XXII
The X-Ray “Movies”
Still holding Dana Phelps between us, we hurried toward the tomb and entered. While our attention had been diverted in the direction of the swamp, the body of Montague Phelps had been stolen.
Dana Phelps was still deliberately brushing off his clothes. Had he been in league with them, executing a flank movement to divert our attention? Or had it all been pure chance?
"Well?" demanded Andrews.
"Well?" replied Dana.
Kennedy said nothing, and I felt that, with our capture, the mystery seemed to have deepened rather than cleared.
As Andrews and Phelps faced each other, I noticed that the latter was now and then endeavouring to cover his wrist, where the dog had torn his coat sleeve.
"Are you hurt badly?" inquired Kennedy.
Dana said nothing, but backed away. Kennedy advanced, insisting on looking at the wounds. As he looked he disclosed a semicircle of marks.
"Not a dog bite," he whispered, turning to me and fumbling in his pocket. "Besides, those marks are a couple of days old. They have scabs on them."
He had pulled out a pencil and a piece of paper, and, unknown to Phelps, was writing in the darkness. I leaned over. Near the point, in the tube through which the point for writing was, protruded a small accumulator and tiny electric lamp which threw a little disc of light, so small that it could be hidden by the hand, yet quite sufficient to guide Craig in moving the point of his pencil for the proper formation of whatever he was recording on the surface of the paper.
"An electric-light pencil," he remarked laconically, in an undertone.
"Who were the others?" demanded Andrews of Dana.
There was a pause as though he were debating whether or not to answer at all. "I don't know," he said at length. "I wish I did."
"You don't know?" queried Andrews, with incredulity.
"No. I say I wish I did know. You and your dog interrupted me just as I was about to find out, too."
We looked at each other in amazement. Andrews was frankly skeptical of the coolness of the young man. Kennedy said nothing for some moments.
"I see you don't want to talk," he put in shortly.
"Nothing to talk about," grunted Dana, in disgust.
"Then why are you here?"
"Nothing but conjecture. No facts, only suspicions," said Dana, half to himself.
"You expect us to believe that?" insinuated Andrews.
"I can't help what you believe. That is the fact."
"And you were not with them?"
"No."
"You'll be within call, if we let you go now, any time that we want you?" interrupted Kennedy, much to the surprise of Andrews.
"I shall stay in Woodbine as long as there is any hope of clearing up this case. If you want me, I suppose I shall have to stay anyhow, even if there is a clue somewhere else."
"I'll take your word for it," offered Kennedy.
"I'll give it."
I must say that I rather liked the young chap, although I could make nothing out of him.
As Dana Phelps disappeared down the road, Andrews turned to Kennedy. "What did you do that for?" he asked, half critically.
"Because we can watch him, anyway," answered Craig, with a significant glance at the now empty casket. "Have him shadowed, Andrews. It may lead to something and it may not. But in any case don't let him get out of reach."
"Here we are in a worse mystery than ever," grumbled Andrews. "We have caught a prisoner, but the body is gone, and we can't even show that he was an accomplice."
"What were you writing?" I asked