"No, no, no!" smiled Moon, shaking his head, "you prefer pleasure to duty. I see you love yourself more than you loved your father. Well," he rose and waved his hands with a gesture of dismissal, "go your ways, my dear, and marry Dan--you observe I call you 'Dan,' Mr. Halliday, since you are to become my nephew straight away. When is the wedding to be?"

"You consent?" cried Lillian opening her eyes widely. "I can't stop you," said Moon, still continuing his crafty diplomacy. "You will soon be of age and you can buy your husband at once, since you dare not risk a probation of twelve months."

"I can risk twelve years," retorted Lillian uneasily, for in a flash she understood how selfishly she was behaving, seeing that her father's assassin was still at large, "and to prove it----" she looked at Dan. He understood and spoke, although he had already made up his mind as to the best course to pursue. "To prove it," he said steadily, "we accept your proposal, Sir John. Lillian will wait twelve months, and during that time I shall search for the woman who murdered Sir Charles. If I don't find her----"

"Lillian marries Lord Curberry," said Moon quickly. "No," cried the girl defiantly; "that part of the agreement I decline to assent to. Twelve months or twelve years it may take before the truth comes to light, but I marry no one but Dan." Sir John reflected on the dangers of aviation and swiftly came to a conclusion. "We'll see at the end of the year," he said cautiously, "much may happen in that time."

"So long as Lillian's wedding to Curberry doesn't happen," said Dan obstinately, "I don't care. But it is understood that Lillian is not to be worried about the matter?"

"That depends upon what you and Lillian call worry," said Moon drily, "so far as I am concerned I shall not coerce her in any way. All I wish is the promise of you both that you will wait twelve months before taking any steps to marry. Meantime, you must not see too much of Lillian."

"Oh," cried the girl, indignantly, "you would push Dan out of my life."

"It's a test," explained Sir John, blinking nervously. "You will be in mourning for the next twelve months, and should see few people."

"Of whom Dan will be one," she flashed out. "Occasionally--very occasionally, you can see him, but, of course, if you can't trust yourself to be true without being continually reminded that Mr. Halliday exists, there is no more to be said."

"I can trust myself," muttered the girl uneasily. "And I can trust Lillian," said Dan, promptly and decisively. "It does not look like it since you always wish to see one another. And remember, Lillian, you owe it to your father's memory to put all thoughts of love, which is self, out of your heart until the mystery of his death is entirely solved."