The silver matchbox was a peculiar one and quite out of the common run of such things. It had a spring lid deeply engraved with a hunting scene, in the centre of the medallion a pair of initials were ingeniously woven together in small stones. The Inspector asked Sir George if he could identify it as part of the family property.

"Never saw it before," Dashwood said promptly. "I am certain that the thing does not belong to anybody in my house. What do you make the initials to be?"

"'V.D.' or 'D.V.'", sir, the Inspector said. "That is perfectly plain. Now does anybody know a person who bears those initials? I should say that the matches are of foreign make, for they are flat, wooden ones, such as one rarely sees in this country. The first thing we have to do is to find out who is this 'V.D.' or 'D.V.' is. He seems to have dropped his matchbox into the fire. Probably, the blaze startled him by its suddenness. But I don't suppose we shall find much difficulty in proving who the owner is."

Sir George shook his head: evidently the puzzle was utterly beyond him. Slight crossed over to one of the windows as if the whole subject had ceased to interest him. He made a sign to Ralph and the latter joined the old servant. He could see that Slight was suppressing a certain excitement.

"What is the matter?" he asked. "Have you solved the problem?"

"No, Mr. Ralph, I've only made it worse," Slight whispered. "I know quite well who that box belongs to, for I've seen it in his possession a score of times, to say nothing of the initials. Did you not meet a Mr. Vincent Dashwood at the dower house today?"

Ralph started in his turn. Vincent Dashwood's initials were on that box surely enough. And, that being the case, what did Mary know of the man? Was she shielding the man who gave out more or less directly that he was the proper owner of Dashwood Hall? Mary was not the girl to show any clemency to an impostor, and if, on the other hand, she did not regard him as an impostor she would be the last person to pretend to a position that she had no right to occupy. But Slight would know.

"I did meet that man you name, but I can't understand how you came to know it so soon," Ralph said. "A tiger, if I ever saw one, Slight. And he let me know pretty clearly that he had more than a passing claim to a deal that other people are enjoying. Is Mr. Vincent Dashwood pretty well known to people here, Slight?"

"Not to anybody but her ladyship and myself," Slight replied. "Mind you, I can't make out whether he's an impostor or not; at least, I was very uncertain in my mind until you came along, sir. He claims to be the son of the late Ralph Dashwood and he has proofs that would satisfy any court in England; and anyone except me. As yet he can't produce the certificate of marriage of his mother and father. But he has any number of private papers,--letters from her ladyship to her son and all the rest of it, to say nothing of being familiar with the place. He didn't want to make a fuss about his claim; he wanted to have it quite plain first. He's been here for a long time."

"Blackmailing Lady Dashwood, I suppose? The fellow is too cowardly to claim the property out and out. In that case he would either have to substantiate his claim or run the risk of a long term of imprisonment if he failed. And, meanwhile, Lady Dashwood displays a weakness that is almost criminal. She half doubts this rascal, and yet at the same time she allows him to take the proceeds of the disposal of the family jewels. Half of the weakness is dictated by the dread of Miss Mary finding out the truth. If there are other reasons----"

"Ay, there are other reasons, Mr. Ralph," Slight said in a broken voice. "If you only knew everything, you would pity her ladyship. She has kept this secret as well as she has kept the rest. Miss Mary knows nothing; she was meant to know nothing."

"And now she will know everything, everybody will know everything. The story of the matchbox will have to be told, and the owner will have to explain how it came here and who he is. You should have known better, Slight, than try to keep a secret like this. Sooner or later the explosion was bound to come. What are you going to do about it now?"

"I'm not going to do anything, sir," Slight said bluntly. "It is not for me in my position to push myself forward. Let the police hunt the matter up for themselves. If Mr. Vincent Dashwood likes to lie low it makes no difference to us."

Ralph smiled at the suggestion. It was so like the policy of the house to leave things to chance like this. In a vague way, Ralph began to see that Fate was playing into his hands. He would let the rod fall. He would be cruel to be kind. As to the rest, it was in Mary's hands; all would depend upon how she behaved for the ne............