“My dear Elsie, strange things happen in war. Frank told me something about Captain Marsland, and as soon as you mentioned his name it all came back to me. But we thought he was dead. Frank told me he was killed at the front—a stray bullet or something.”
“What was it that Frank told you about him? I must know.”
“Marsland sent a man to certain death to get him out of the way. One night he sent Frank and another man—Collingwood, I think Frank said his name was—as a listening patrol. They had to crawl up near the German trenches and, lying down with their ears to the ground, listen for sounds in the German trenches which might indicate that the Germans were getting ready to make an attack. While they were out this fellow Collingwood told Frank his history. Collingwood had a sort of premonition that he would not get back alive, and he took Frank into his confidence. He said he knew that Marsland had sent him out in the hope that the Germans would get him. It appears that Collingwood and Marsland were both in love with the same girl, and she preferred Collingwood, though her parents didn’t approve of him. Collingwood was a gentleman, like a great many more of the rankers in Kitchener’s Army. He gave Frank a letter to this girl, and her photograph, and asked Frank to see that she got them if he himself was killed. And killed he was that night—through the treachery of Marsland. While they were listening they heard the Germans getting ready for an attack. They crept back to warn their comrades, but there was no one to warn. The trench had been evacuated. When Marsland sent Frank and Collingwood out as a listening patrol he had an order in his pocket to vacate the trench, as it had been decided to fall back half a mile to a better position. He thought he was sending Collingwood and Frank to their death. Collingwood was killed. The Germans attacked before he and Frank could get away, but Frank, as you know, was taken prisoner. I was taken prisoner the same day, but at a different sector about a mile away. Subsequently Frank and I met as prisoners—and after being tortured by the Germans we got away.”
“And did Frank deliver Collingwood’s letter to the girl?”
“No, that is the sad part of it. The Germans took all his papers from him and he never saw them again. He did not know the address of the girl or even her name.”
“It was a dreadful thing for Captain Marsland to do,” she murmured.
“A great many dreadful things have been done out there,” he said. “I’ll tell you my idea of how this murder was committed. Marsland thought Frank had been killed by the Germans. After riding across the downs beyond Staveley he met Frank, who was walking along the road to meet me. He stopped Frank and pretended to be very friendly to him. They talked over old times at the front, Marsland being anxious to know how Collingwood had died and whether Collingwood had any idea that he had been sent to his death. As there was no sign of my car, Frank turned back with Marsland to the farm. While they were in the house Frank let slip the fact that Collingwood had confided in him before he died. Perhaps Marsland became aware of it through an effort on Frank’s part to get from him the name of the girl to whom Collingwood had been practically engaged.
“No doubt there were angry words between them; and Marsland, in order to save himself from being exposed by Frank to the regimental authorities, and to the girl, shot him dead. That would be a few minutes before you reached the farm. When you reached the house Marsland had gone outside to remove traces of the crime—perhaps to burn something or to wash blood-stains from his hands or clothing at the pump. He left the key in the door so that he could enter the house again. When he found the key gone he was confused: he was not certain whether he had placed the key in the lock. He did not believe that any one had entered the house, but to make sure on that point he knocked. He was surprised when you opened the door, but he played his part so well that you did not suspect he had been in the house before. As you had not discovered the body, he thought it best that you and he should discover it together. That would be less suspicious, as far as he was concerned, than for you to go away without discovering it. Had you betrayed any suspicion that you thought he was the murderer he would have shot you too, and then made off.”
“But his horse was there,” she said. “It was quite lame. He could not have ridden away on it; and to leave it behind was to leave the police a convincing clue that he had been to Cliff Farm.”
“I was forgetting about his horse,” said Brett. “It was the fact that his horse was there which made him knock after he saw the key had been taken from the door. He had to brazen it out.”