Mark Cray could scarcely believe his eyes when he saw who was the speaker. "I was in a heavy sleep," he answered. "Did you ring more than once?" A heavy sleep! Truly Dr. Davenal marvelled at the words. He marvelled that sleep could have visited Mark Cray that night, after his share in its fatal work. "What is the matter?" asked Mark. "Am I wanted?" "It is I who want you," said the doctor. "I must say a word to you if you'll come down. I am called out of town." Mark attired himself sufficiently to descend, which he did in a state of wonder. He had never received a night visit from Dr. Davenal; it was quite out of the usual order of things, and he would about as soon have expected to see a live kangaroo wait upon him. He opened the front door, and they stepped into the large parlour. "Who is ill?" inquired Mark. "Are you called out far?" "I am going out on a little private business of my own. The train for Merton will be through presently, and I shall take it. If"---- "Why did you not tell me last night?" interrupted Mark. "Because I did not then know I should have to go. You must take my patients for me. What I wished particularly to say to you was about the inquest. They can't call it for tomorrow--that is, today--Monday; but I think they are sure to hold it on Tuesday. If I am not back"---- "What inquest?" interrupted Mark, wonderingly. "The inquest on Lady Oswald." "My goodness! Do you think they'll get up an inquest over her?" "Of course they will. What are you dreaming of? The remote cause of her death was the accident to the train. I am not quite sure of being back. I expect to be home on Tuesday morning early; but it is possible I may be detained a little longer. If I am not back, Mark, you will be the only witness--at least the only one who can speak to the facts of the death. Let me advise you to say as little as possible. Volunteer no information; answer their questions briefly; and don't get into a long-winded narration, as you are apt to do, otherwise you may betray yourself. You will not mistake me;" Dr. Davenal added. "I have always been open, truthful, candid as the day; and if I so speak now it is in your interest. I was thinking this over a great deal last evening after I left you, and I see that it is essential for your good name in your profession that the facts of the case should not be made known. Do not suppose I advise you to a direct deviation from the truth; nothing of the sort. 'Chloroform was exhibited with a view to lessen her sufferings, and she never rallied from it,' is all you need say. Similar cases are unhappily not unknown; I fear not very uncommon; and the coroner will not be likely to exact minute particulars, or inquire whether you gave it her, or whether I did. He will assume that we acted in concert." Mark Cray nodded. He was nervously and incessantly pushing back his hair.