When we reached the crest of the hill leading down to the bridge, our eyes at once caught sight of a tall maple tree, on the right-hand side of the road and about two hundred yards from it.
As he saw it the coroner gave a grunt of satisfaction.
“There's our tree.”
We stopped the car and scrambled through the thorny bushes that lined the road. The ground was hard clay with only burdock and weeds growing on it. There was nothing that would lead us to believe that any one had been there before. When we reached the tree, the coroner examined the ground around it carefully. When he arose he seemed disappointed.
“What did you expect to find here?” I asked.
“I didn't know what we might find. If the man who fired those shots used this tree, I thought we might find an empty cartridge or two. There ought to be at least some broken twigs or something to show that he was up there, but I find nothing at all.”
“Still, the fact that the tree is where it is, makes the theory plausible.”
He shook his head. “No. Now that I've seen how far we are from the road I don't think it does. Those bullet holes in the back of the car were fired from above and behind the machine. They slanted down but not sidewise. If a tree had been at the very side of the road, our theory would be acceptable, but if the murderer used this tree, two hundred yards from the road, he would have started firing before the car came opposite, with the probability that the holes would have been found in the side of the car. I'm sorry, for when I saw this tree, I thought we'd struck the right track.”
“There's one thing I can't make out,” I stated, “and that is the strange cry of my sister in her delirium. 'Look out, Jim! It's going to hit us,' she called out, and I would be willing to swear it had something to do with the murder.”
The coroner thought a moment, then turned to me.
“What else did she say?”
“Nothing that seemed to refer to the accident. All the rest was apparently delirium. She begged forgiveness for some fancied wrong, and repeated that a certain man was not guilty of dishonesty. But her first weird cry had to do with the murder, I'm sure.”
We walked back toward the road together. High overhead we heard the droning of an aeroplane and we both stopped to gaze at it. Suddenly the coroner clapped me on the shoulder.
“I've got it!”
“What do you mean?” I asked, bewildered.
“An aeroplane, man! Who owns an aeroplane around here?”
“I don't know. There are several at the aviation grounds. What's that got to do with it?”
“Everything! Don't you see? The bullets fired from above and behind. The number of bullets fired. Those two bullet holes in the foot-board of the car—everything points to an aeroplane. It was done a hundred, yes, a thousand times in the war. While I was over there with my hospital unit we used to get a lot of cases of motorcycle despatch riders who had been picked off by German aviators. They machine-gunned moving trains and military automobiles. It is one of the simplest tricks of a pilot's repertoire. Has Woods an aeroplane?”
“He was a military pilot in the French army and is the head of an aeroplane firm, but I don't think he has an aeroplane here.”
“He could get one easy enough.”
“The clever devil! Look over there! He had the broad sweep of the golf course as a perfect landing ground and this road hasn't a tree on it for a mile. He could have come down within fifty feet of the ground and followed that car, pumping bullets into it all the way. He had absolutely everything in his favor.”
For a moment I saw red as I pictured Jim, helpless before approaching death. I could imagine Helen's agony as she saw that dim black shape come closer and closer and screamed in her terror, “Look out, Jim! It's going to hit us.”
“Yes, but how are we going to prove it?” I asked.
“That's up to us now. An aeroplane has such speed that it was easy for Woods to fashion an ingenious alibi to account for every minute of his time on the night of the murder, but there must be some holes in it; there always is in a manufactured alibi. I want you to go over to the country-club and check up Mr. Woods' schedule of that night while I examine the golf links to see if he landed there.”
We jumped into my car and drove rapidly to the club. I went into the house by the back way to avoid meeting people and asked for Jackson.
“Jackson, what time did Mr. Woods get out here on the evening Mr. Felderson was killed?”
“Ah espect he got heah 'bout six o'clock, Mistuh Thompson,” the negro replied.
“Did you see him at that time?”
“Did Ah see him at dat time? Le'me see? Why, no, suh, Ah don' think Ah did.”
“When was the first time you did see him, Jackson?”
“Ah guess it was at dinnah time, suh. He was heah den.”
“You're sure he was here all through dinner?” I asked.
“Yes, suh! He must hab been, 'cause he ohdahd dinnah.”
“What time was he through dinner, do you know?”
The darky scratched his head. “Ah reckon it war just befoh he ohdahd me ter bring him dat drink.”
“And he was here all that time?” I demanded.
“Yes, suh! He was right heah.”
“Where did he sit?”
“Lemme see. Ah recollec' now, he ask me speshul fo' dat table ovah yondah by de winder.”
“Can you find the boy that waited on that table that night?”
The old darky hurried away, but came back presently leading a scared yellow boy by the sleeve.
“Now, Geoge Henry, you-all quit youah contrahiness an' ansuh de genleman's questions o' Ah 'low Ah whup you.”
“George, did you wait on that table over there by the window two weeks ago?”
“Ya-yas, suh! Ah ben waitin' on dat table fo' mo'n a month.”
“Do you remember waiting on Mr. Frank Woods two weeks ago last Thursday night?” I asked.
The boy was trembling. He rolled frightened eyes toward Jackson who was glaring at him. Finally he broke into a wail. “Oh! Pappy Jackson, da's all Ah knows. He tell me he go to de bah an' ef'n anybuddy ask whah he go dat night to sen' em in dah.”
“Just tell me what you know, George!” I said, motioning the angry Jackson away.
“He—he set down at de table but he ain't eat none,” the boy stuttered.
“What do you mean, George?”