This also you cleared up in a very effective way, though I had already come to the same conclusions from my own observations.
"By the time that you discovered me upon the moor I had a complete knowledge of the whole business, but I had not a case which could go to a jury.

Even Stapleton's attempt upon Sir Henry that night which ended in the death of the unfortunate convict did not help us much in proving murder against our man.

There seemed to be no alternative but to catch him red-handed, and to do so we had to use Sir Henry, alone and apparently unprotected, as a bait.

We did so, and at the cost of a severe shock to our client we succeeded in completing our case and driving Stapleton to his destruction.

That Sir Henry should have been exposed to this is, I must confess, a reproach to my management of the case, but we had no means of foreseeing the terrible and paralyzing spectacle which the beast presented, nor could we predict the fog which enabled him to burst upon us at such short notice.