"Now that you tell me it is hereditary, I am so far confirmed in my opinion that I should not hesitate, if called upon to do so, to sign a certificate to the effect that, in my opinion, he was so far insane as to need the most careful watching, if not absolute confinement."
The colour had faded from the lieutenant's face as the doctor spoke.
"I am awfully sorry," he said, in a low tone, "and I trust to God, doctor, that you are mistaken. I cannot but think that you are. I was introduced to him by his sister, and he was most civil and polite, indeed more than civil, for he asked me if I was fond of shooting, and when I said that I was extremely so, he invited me over to his place. He said he did not shoot himself, but that next week his cousin Mervyn and one or two others were coming to him to have two or three days' pheasant shooting, and he would be glad if I would join the party; and, as you may suppose, I gladly accepted the invitation."
"Well," the doctor said, drily, "so far as he is concerned, there is no danger in your doing so, if, as you say, he doesn't shoot. If he did, I should advise you to stay away; and in any case, if you will take the advice which I offer, you won't go. You will send an excuse."
The lieutenant made no answer for a minute or two, but paced the room in silence.
"I won't pretend to misunderstand you, Mackenzie. You mean there's no danger with him, but you think there may be from her. That's what you mean, isn't it?"
The doctor nodded.
"I saw you were taken with her, Gulston; that is why I have spoken to you about her brother."
"You don't think—confound it, man—you can't think," the lieutenant said, angrily, "that there is anything the matter with her?"
"No, I don't think so," the doctor said, gravely. "No, I should say certainly not; but you know in these cases where it is in the blood it sometimes lies dormant for a generation and then breaks out again. I asked somebody casually last night about their father, and he said that he was a capital fellow and most popular in the country; so if it is in the blood it passed over him, and is showing itself again in the son. It may pass over the daughter and reappear in her children. You never know, you see. Do you mind telling me what you know about the family?"