caught up the lamp and left no corner of the house unexplored. No sign could we see of the man whom we were chasing. On the upper floor, however, one of the bedroom doors was locked.

`There's someone in here,' cried Lestrade. `I can hear a movement. Open this door!'

A faint moaning and rustling came from within. Holmes struck the door just over the lock with the flat of his foot and it flew open. Pistol in hand, we all three rushed into the room.

But there was no sign within it of that desperate and defiant villain whom we expected to see. Instead we were faced by an object so strange and so unexpected that we stood for a moment staring at it in amazement.

The room had been fashioned into a small museum, and the walls were lined by a number of glass- topped cases full of that collection of butterflies and moths the formation of which had been the relaxation of this complex and dangerous man. In the centre of this room there was an upright beam, which had been placed at some period as a support for the old worm-eaten baulk of timber which spanned the roof. To this post a figure was tied, so swathed and muffled in the sheets which had been used to secure it that one could not for the moment tell whether it was that of a man or a woman. One towel passed round the throat and was secured at the back of the pillar. Another covered the lower part of the face, and over it two dark eyes - eyes full of grief and shame and a dreadful questioning - stared back at us. In a minute we had torn off the gag, unswathed the bonds, and Mrs. Stapleton sank upon the floor in front of us. As her beautiful head fell upon her chest I saw the clear red weal of a whiplash across her neck.

`The brute!' cried Holmes. `Here, Lestrade, your brandy-bottle! Put her in the chair! She has fainted from ill-usage and exhaustion.'

She opened her eyes again.

`Is he safe?' she asked. `Has he escaped?'

`He cannot escape us, madam.'

`No, no, I did not mean my husband. Sir Henry? Is he safe?'

`Yes.'

`And the hound?'

`It is dead.'

She gave a long sigh of satisfaction.

`Thank God! Thank God! Oh, this villain! See how he has treated me!' She shot her arms out from her sleeves, and we saw with horror that they were all mottled with bruises. `But this is nothing - nothing! It is my mind and soul that he has tortured and defiled. I could endure it all, ill-usage, solitude, a life of deception, everything, as long as I could still cling to the hope that I had his love, but now I know that in this also I have been his dupe and his tool.' She broke into passionate sobbing as she spoke.

`You bear him no good will, madam,' said Holmes. `Tell us then where we shall find him. If you have ever aided him in evil, help us now and so atone.'

`There is but one place where he can have fled,' she answered. `There is an old tin mine on an island in the heart of the mire. It was there that he kept his hound and there also he had made preparations so that he might have a refuge. That is where he would fly.'