The girl's face reddened again, and her eyes sparkled.
"I wouldn't marry him if he were a peer of the realm," she said indignantly.
"Quite so. But he is an avowed suitor. Now don't be vexed. Has he never declared his intentions to you?"
"He would never dare. I sing and act a little, at village concerts and dramatic performances, and he has annoyed me at times by an officious pretense that he was deputed by my father to see me home. I came here quite a little girl, so people learnt to use my Christian name. I don't object to it at all. But I simply hate hearing it on Mr. Elkin's lips."
"Exit Fred!" said Winter solemnly. "Next!"
Doris, after a period of calm, was now profoundly uncomfortable. This kind of prying was the last thing she had expected. She had come prepared to defend Grant, but, beyond one exceedingly personal reference, the detective had studiously shut him out of the conversation.
"What am I to say?" she cried. "Do you want a list of all the young men who make sheep's eyes at me?"
"No. I can get that from the Census Bureau. Come, now, Miss Martin. You know. Has any man in the village led you to suspect, shall we put it? that sometime or other, he might ask you to become his wife?"
Lo, and behold! Doris's pretty eyes filled with tears. Superintendent Fowler was so pleased at hearing Scotland Yard introducing a parenthetical query into its sentences that he, sitting opposite, was taken aback when Winter said in a fatherly way:
"I've been rather clumsy, I'm afraid. But it cannot be helped. I must go blundering on. I'm groping in the dark, you know, but it's a thousand pities I shall have to tread on your toes."
"It isn't that," sobbed Doris. "I hate to put my thoughts into words. That's all. There is a man whom I'm—afraid of."
"Siddle?"
She turned on Winter a face of sudden awe.
"How can you possibly guess?" she said wonderingly, and sheer bewilderment dried her tears.
"My business is nine-tenths guesswork. At any rate, we are on firm ground now. If you could please yourself, I suppose, Mr. Siddle would not come to tea to-day!"
"He certainly would not," declared the girl emphatically.
"You believe he is coming for a purpose?"
"Yes."
"Elkin—I must drag him in again for an instant—pretends that the commotion aroused in the village by this murder would incline you favorably to a proposal of marriage. Mr. Siddle may have discovered some virtue in the theory."
"Did Mr. Elkin really hint that I needed him as a shield?"
Doris was genuinely angry now. She little imagined that Winter was playing on her emotions with a master hand.
"Don't waste any wrath on Elkin," he soothed her. "The fellow isn't worth it. But his crude idea might be developed more subtly by an abler man."
"I think it odd that Mr. Siddle should choose to-day, of all days, for a visit," she admitted.
Winter relapsed into silence for a while. The car was running through a charming countryside, and a glimpse of the sea was obtainable from the crest of each hill. Mr. Fowler was too circumspect to break in on the thread of his coadjutor's thoughts. The inquiry had taken a curious turn, and was momentarily beyond his grasp.
"It's singular, but it's true," said the detective musingly when next he spoke, "that I am now going to ask you to act differently than was in my mind when I sought this interview. I should vastly like to be present when Siddle bares his heart to you this afternoon.
"I can invite you to tea."
Alas! that won't serve our ends. But, if you feel you have a purpose, you will be nerved to deal with him. Bring him out into that secluded garden of yours—"
"The first thing he will suggest," and Doris's voice waxed unconsciously bitter. "He knows that dad will be busy with the mails for an hour after tea."
"Good!"
"I think it bad, most disagreeable."
"You won't find the position so awkward if you are playing a part. And that is what I want—a bit of clever acting. Lean on those railings, and make Siddle believe that your heart is on Mr. Grant's lawn. You know the kind of thing I mean. Dreamy eyes, listless manner, inattention, with smiling apologies. You will annoy Siddle, and a cautious man in a temper becomes less cautious. Force him to avow his real thoughts. You will learn something, trust me."
"About what?"
There were no tears in Doris's eyes. They were wide open in wonderment.
"About his attitude to this tragedy. Do this, and you will be giving Mr. Grant the greatest possible help. He needs it. Next Wednesday, at the adjourned inquest, he will be put on the rack. Ingerman will fee counsel to be vindictive, merciless. Such men are to be hired. Their reputation is built up on the slaughter of reputations. I want to understand Siddle before Wednesday. By the way, what's his other name?"
"Theodore."
"Theodore Siddle. Unusual. Well, your half hour is nearly up. Will you do what I ask?"
"I'll try. May I put one question?"
"Yes."
"You said you had something altogether different in view before we met. What was it?"
"I'll tell you—let me see—I'll tell you on Thursday."
"Why not now?"
"Because it is the hardest thing in the world for a woman to be single-minded, in the limited sense of concentration, I mean. Focus your wits on Siddle to-day. I don't suggest any plan. I leave that to your own intelligence. Vex him, and let him talk."
"Vex him!"
"Yes. What man won't get mad if he notices that his best girl is thinking about a rival."
This time Doris did not blush. She was troubled and serious, very serious.
"I'll do what I can," she promised. "When shall I see you again?"
"Soon. There's no hurry. All this is preparatory for Wednesday."
"Am I to tell my father nothing?"
"Please yourself. Not at present. I recommend you."
The car had stopped. It sped on when Doris alighted. She would be home with her cakes at three o'clock, and Mr. Martin would never have noticed her absence.
"A fine bit of work, if I may say so," exclaimed Fowler appreciatively. "But I am jiggered if I can imagine what you're driving at."
Winter was cutting the end off a big cigar. He finished the operation to his liking before answering earnestly:
"We stand or fall by the result of that girl's efforts. Furneaux thinks so, and I agree with him absolutely. After five days, where are we, Mr. Fowler? In the dark, plus a brigand's hat and hair. But there's a queer belief in some parts of England that a phosphorescent gleam shows at night over a deep pool in which a dead body lies. That's just how I feel about Siddle. The man's an enigma. What sort of place is Steynholme for a chemist of his capacities? Dr. Foxton has the highest regard for him professionally, and I'm told he doctors people for miles around. Yet he lives the life of a recluse. An old woman comes by day to prepare his meals, and tidy the house and shop. His sole relaxation is an hour of an evening in the village inn, his visits there being uninterrupted since the murder. He was there on the night of the murder, too. For the rest, he is alone, shut off from the world. Without knowing it, he's going to fall into deep waters to-day, and he'll emit sparks, or I'm a Chinaman.... I'll leave you here. Good-by! See you on Tuesday, after lunch."
The superintendent drove on alone. He pondered the Steynholme affair in all its bearings, but mostly did he weigh up Winter and Furneaux. At last, he sighed.