She sighed contentedly.
"What should I do if you forgot me, Mark? I should die. But," she added in a different tone, "I think I should kill you first!"
Mark laughed a little uneasily.
"Hush, hush," he said, "you mustn't talk so much about killing. A minute ago you were talking of killing my poor old uncle. If I took you seriously what should I think? It is lucky I love you as I do, otherwise doesn't it occur to you that it might get you into trouble to talk in this wild way?"
"You can take me as seriously as you like," she answered gravely. "I am serious enough, God knows. But I shouldn't talk about it, even to you, if I didn't know it was safe. You see, I know you are like me."
"Like you? I'm dashed if I am! How do you mean? I am like you?"
She looked at him squarely, and nodded.
"Yes," she said, "you are like me. You would not hesitate to kill if you thought it necessary. You think just the same as me on that subject. Only you have gone farther than I have--yet."
"Julia," he cried, "what do you mean?"
"I mean that I know all about you, Mark," she replied gravely. "I know what you think you have kept secret from me. I know it was you who killed your uncle."
With a muffled cry Mark shook himself free, and sprang away from her.
"What are you saying?" he whispered hoarsely. "You are mad, girl! But I won't have such lies uttered, I won't have it, I tell you."
With terrified amazement Juliet saw his face change, become ugly, distorted. But Julia showed no sign of alarm.
"Why get so excited?" she asked calmly. "What does it matter? Do you imagine I would betray you? I, who would sell my soul for you! I know you did it. It is no use keeping up this pretence of innocence to me, who had more right to kill him than you. Why shouldn't you kill who you wish? But don't say you didn't do it. It is foolish. I saw you."
"It is a lie. You can't have seen me," Mark declared again, but with less assurance. "You were in the drawing-room all the time. Lady Ruth and Maisie Tarver both said so. The drawing-room doesn't even look out on the garden. There is no room that does, except the library, and you weren't there then, anyhow."