"We now come to what is the most important discovery of all—the pieces of candle-grease we found in the murdered man's bedroom. They help to establish two curious facts, the least important of which is that somebody tried to light the gas in Mr. Glenthorpe's room last night, and, failing to do so, went downstairs and turned on the gas at the meter."
"What if they did?" grunted Superintendent Galloway, pouring out another glass of brandy. He was secretly annoyed at having overlooked the clue of the umbrella silk, and was human enough to be angry with the detective for opening his eyes to the fact. "I don't see how you're going to prove it, and, even if you did, it doesn't matter a dump one way or the other."
"We'll let that point go," rejoined Colwyn curtly. "Your attitude in shutting your eyes to facts hardly encourages me to proceed, but I'll try. Would you mind showing me those bits of candle-grease you picked up in the bedroom?"
Superintendent Galloway produced a metal match-box from his pocket, emptied some pieces of candle-grease, a burnt wooden match and a broken matchhead from it, and sat back eyeing the detective with a supercilious smile. Colwyn, after examining them closely, brought from his own pocket an envelope, and shook several more pieces of candle-grease on the table.
"Look at these pieces of candle-grease side by side," he said. "Yours were picked up alongside the bed; I found mine underneath the gas burner."
Superintendent Galloway glanced at the pieces of candle-grease with the same supercilious smile. "I see them," he said. "They are pieces of candle-grease. What of them?"
"Do you not see that they are different kinds of candle-grease? The pieces you picked up alongside the bed are tallow; mine, picked up from underneath the gas-globe, are wax."
The Superintendent had not noticed the difference in the candle-grease, but he thought it beneath his dignity to examine them again. "The murderer may have had two candles," he said oracularly. "Anyway, what does it matter? They're both candle-grease."
Colwyn swept his fragments back into his pocket with a quick impatient gesture. "Both candle-grease, as you say," he returned sharply. "We do not seem to be making much progress in our investigations, so let us discontinue them. Good-night."
CHAPTER X
Colwyn went to bed, but not to sleep. Hour after hour he lay awake, staring into the darkness, endeavouring to put together the facts he had discovered during the afternoon's investigations at the inn. But they resembled those irritating odd-shaped pieces of a puzzle which refuse to fit into the remainder no matter which way they are turned. Try as he would, he could not fit his clues into harmony with the police theory of the murder.
On the other hand, he could not, nor did he attempt, to shut his eyes to the strong case against Ronald, for he fully realised that there was much to be explained in the young man's actions before any alternative theory to that held by the police could be sustained. But so far he did not see his way to an alternative theory. He sought vainly for a foundation on which to build his clues and discoveries; for some overlooked trifle which would help him to read aright the true order and significance of the jumbled assortment of events in this strange case.
In the first place, was Ronald's explanation, about losing his way and wandering to the inn by chance, the true one? The police accepted it without question, but was it likely that a man who was in the habit of taking long walks about the coast would lose his way easily? As against that doubt, there were the statements of the innkeeper and the deaf waiter that they had never seen Ronald before. If Ronald were not guilty, why had he departed so hurriedly from the inn that morning? And if he were not the murderer what was the explanation of the damning evidence of the footprints leading to the pit in which the body of the murdered man had been flung? If the discovery of the two kinds of candle-grease in Mr. Glenthorpe's bedroom indicated that two persons were in the room on the night of the murder, who were those two persons, and what did they both go there for?
He reflected that his only tangible reason, so far, for not accepting the police theory was based on the belief that two people had been in the murdered man's room, and that belief rested on the discovery of a spot of candle-grease which in itself was merely presumptive, but not conclusive evidence. It was necessary to establish beyond doubt the supposition that two people had been in the room before he could presume to draw inferences from it. And, if he succeeded in establishing that supposition, might not Ronald have been one of the two persons, and the actual murderer? What was the significance of the broken incandescent burner, the turned-on gas, and the faint mark under the window?
These questions revolved in Colwyn's head in a circle, always bringing him back to his starting point that the solution of the case did not lie on the surface, and that the police theory could not be made to fit in with his own discoveries. The latter were in themselves internal evidence that the whole truth had not yet been brought to light.
Gradually the line of the circle grew nebulous, and Colwyn was fast falling asleep through sheer weariness, when a slight sharp sound, like that made by turning a key in a lock, brought him back to wide-eyed wakefulness. He sat up in bed, listening with strained ears, feeling for the box of matches at his bedside. He found them, and endeavoured to strike a light. But the matches were war matches, and one after another broke off in his hand against the side of the box. He tried holding the next close to the head, but the head flew off. With a muttered malediction on British manufacturers, Colwyn struck several more in rapid succession before he succeeded in lighting the candle at his bedside. He got quietly out of bed, and, leaving the candle on the table, opened his door noiselessly and looked out into the passage.
He had been put to sleep in a small bedroom in the deserted upstairs wing where the murder had been committed. His room was opposite the lumber room, which was three doors away from the room in which the body of the dead man lay. When the question of accommodation for Superintendent Galloway and himself had been discussed, the former had chosen to have a bed made up in the bar parlour downstairs as more comfortable and snug than any of the bedrooms upstairs, but Colwyn had consented to sleep in the deserted wing. The innkeeper, who had lighted him upstairs, had apologised for the humble room and scanty furniture, but Colwyn had laughingly accepted the shortcomings of the room as a point of no importance, and had stood at his door for some moments watching a queer effect in shadows caused by the innkeeper's candle throwing gigantic wavering outlines of his gaunt retreating figure on the bare stone wall as he went down the side passage to his own bedroom.
Colwyn, looking out into the passage, could hear or see nothing to account for the sound that had startled him into wakefulness. The candle by his bedside gave a feeble glimmer which did not reach to the door, and the passage was as dark and silent as the interior of a vault. The stillness and blackness seemed to float into the bedroom like a cloud. But he was certain he had not been mistaken. A door had been unlocked somewhere in the darkness, and it had been unlocked by human hands. Who had come to that deserted wing of the inn in the small hours, and on what business? He decided to explore the passage and find out.
He left the door of his room partly open while he donned a few articles of clothing, and pulled a pair of slippers on his feet. He glanced at his watch, and noted with surprise that it wanted but a few minutes to three o'clock. He extinguished his candle and, taking his electric torch, crept silently into the passage.
He recalled the arrangements of the rooms as he had observed them the previous afternoon. There were three more bedrooms adjoining his, all empty. On the other side of the passage was the lumber room opposite, next came the room in which Ronald slept, then the dead man's room, and finally the sitting-room he had occupied. The door of the sitting-room opened not very far from the head of the stairs.
Colwyn first examined the bedrooms on his side of the passage, stepping as noiselessly as a cat, opening and shutting each door without a sound, and scrutinising the interiors by the light of his torch. They