“‘Keep your forgiveness for those who ask for it,’ he answered, turning away from me with a sneer.  I saw that he was too hardened for any words of mine to influence him.  There was but one way for it.  I called in the inspector and gave him into custody.  A search was made at once not only of his person but of his room and of every portion of the house where he could possibly have concealed the gems; but no trace of them could be found, nor would the wretched boy open his mouth for all our persuasions and our threats.  This morning he was removed to a cell, and I, after going through all the police formalities, have hurried round to you to implore you to use your skill in unravelling the matter.  The police have openly confessed that they can at present make nothing of it.  You may go to any expense which you think necessary.  I have already offered a reward of 1000 pounds.  My God, what shall I do!  I have lost my honour, my gems, and my son in one night.  Oh, what shall I do!”

He put a hand on either side of his head and rocked himself to and fro, droning to himself like a child whose grief has got beyond words.

Sherlock Holmes sat silent for some few minutes, with his brows knitted and his eyes fixed upon the fire.

“Do you receive much company?” he asked.

“None save my partner with his family and an occasional friend of Arthur’s.  Sir George Burnwell has been several times lately.  No one else, I think.”

“Do you go out much in society?”

“Arthur does.  Mary and I stay at home.  We neither of us care for it.”

“That is unusual in a young girl.”

“She is of a quiet nature.  Besides, she is not so very young.  She is four-and-twenty.”

“This matter, from what you say, seems to have been a shock to her also.”

“Terrible!  She is even more affected than I.”

“You have neither of you any doubt as to your son’s guilt?”

“How can we have when I saw him with my own eyes with the coronet in his hands.”

“I hardly consider that a conclusive proof.  Was the remainder of the coronet at all injured?”

“Yes, it was twisted.”

“Do you not think, then, that he might have been trying to straighten it?”

“God bless you!  You are doing what you can for him and for me.  But it is too heavy a task.  What was he doing there at all?  If his purpose were innocent, why did he not say so?”

“Precisely.  And if it were guilty, why did he not invent a lie?  His silence appears to me to cut both ways.  There are several singular points about the case.  What did the police think of the noise which awoke you from your sleep?”

“They considered that it might be caused by Arthur’s closing his bedroom door.”

“A likely story!  As if a man bent on felony would slam his door so as to wake a household.  What did they say, then, of the disappearance of these gems?”