“There is no doubt about Blatherwick’s honesty,” he admitted, “but the Admiral himself says that he dare trust no one, and that for weeks he has given him no paper of importance to work upon simply for that reason. It has been growing upon me that we may have been mistaken all along, that very likely Miss Merton was paid to steal his work, and that it may possess for certain people, and for certain purposes, a real technical importance. How else can we account for the deliberate efforts which have been made to obtain possession of it?”

“You have spent some time examining it yourself,” she said in a low tone; “what was your own opinion?”

“I found some sheets,” he answered, “and I read them very carefully; they were connected with the various landing-places upon the Suffolk coast. An immense amount of detail was very clearly given. The currents, bays, and fortifications were all set out; even the roads and railways into the interior were dealt with. I compared them afterwards with a map of Suffolk. They were, so far as one could judge, correct. Of course this was only a page or two at random, but I must say it made an impression upon me.”

There was another silence, this time longer than before. Lady Deringham was thinking. Once more, then, the man had lied to her! He was on some secret business of his own. She shuddered slightly. She had no curiosity as to its nature. Only she remembered what many people had told her, that where he went disaster followed. A piece of coal fell into the grate hissing from the fire. He stooped to pick it up, and catching a glimpse of her face became instantly graver. He remembered that as yet he had heard nothing of what she had come to tell him. Her presence in the library was altogether unexplained.

“You were very good,” she said slowly; “you stayed what might have been a tragedy. You knew that I was there, you helped me to escape; yet you must have known that I was in league with the man who was trying to steal those papers.”

“There was no mistake, then! You were doing that. You!”

“It is true,” she answered. “It was I who let him in, who unlocked your father’s desk. I was his accomplice!”

“Who was the man?”

She did not tell him at once.

“He was once,” she said, “my lover!”