“You don’t know the truth now,” retorted Mrs. Frewin.

“Oh, yes, I do,” replied Lady Molly, still smiling. “I know that two years ago your son, Mr. Lionel Frewin, was in terrible monetary difficulties. There was something unavowable, which he dared not tell his father. You had to set to work to find money somehow. You had no capital at your own disposal, and you wished to save your son from the terrible consequences of his own folly. It was soon after M. de Colinville’s visit. Your husband had had his first apoplectic seizure; his mind and eyesight were somewhat impaired. You are a clever artist yourself, and you schemed out a plan whereby you carefully copied the priceless miniatures and then entrusted them to your son for sale to the Art Museum at Budapest, where there was but little likelihood of their being seen by anyone who knew they had belonged to your husband. English people do not stay more than one night there, at the Hotel Hungaria. Your copies were works of art in themselves, and you had no difficulty in deceiving your husband in the state of mind he then was, but when he lay dying you realised that his will would inevitably be proved, wherein he bequeathed the miniatures to Mr. James Hyam, and that these would have to be valued for probate. Frightened now that the substitution would be discovered, you devised the clever comedy of the burglary at Blatchley, which, in the circumstances, could never be brought home to you or your son. I don’t know where you subsequently concealed the spurious Engleheart miniatures which you calmly took out of the library and hid away during the night of your husband’s death, but no doubt our men will find that out,” she added quietly, “now that they are on the track.”

With a frightened shriek Mrs. Frewin turned as if she would fly, but Lady Molly was too quick for her, and barred the way. Then, with that wonderful charm of manner and that innate kindliness which always characterised her, she took hold of the unfortunate woman’s wrist.

“Let me give you a word of advice,” she said gently. “We at the Yard will be quite content with a confession from you, which will clear us of negligence and satisfy us that the crime has been brought home to its perpetrator. After that try and enter into an arrangement with your husband’s legatee, Mr. James Hyam. Make a clean breast of the whole thing to him and offer him full monetary compensation. For the sake of the family he won’t refuse. He would have nothing to gain by bruiting the whole thing abroad; and for his own sake and that of his late uncle, who was so good to him, I don’t think you would find him hard to deal with.”

Mrs. Frewin paused awhile, undecided and still defiant. Then her attitude softened; she turned and looked full at the beautiful, kind eyes turned eagerly up to hers, and pressing Lady Molly’s tiny hand in both her own she whispered:

“I will take your advice. God bless you.”

She was gone, and Lady Molly called Hankin to her side.

“Until we have that confession, Hankin,” she said, with the quiet manner she always adopted where matters connected with her work were concerned, “Mum’s the word.”

“Ay, and after that, too, my lady,” replied Hankin, earnestly.

You see, she could do anything she liked with the men, and I, of course, was her slave.