I knew something of his habits.

I knew the fear in which he went when he was in England and away from the feudal guards who had surrounded him in Albania.

I knew of his famous door with its steel latch and I was planning to circumvent all these precautions and bring to him not only the death he deserved, but a full knowledge of his fate before he died.
"Gathercole had some money,--about 140 pounds--I took 100 pounds of this for my own use, knowing that I should have sufficient in London to recompense his heirs, and the remainder of the money with all such documents as he had, save those which identified him with Kara, I handed over to the British Consul.
"I was not unlike the dead man.

My beard had grown wild and I knew enough of Gathercole's eccentricities to live the part.

The first step I took was to announce my arrival by inference.