Later on, my body is found.

There are no marks of violence, and probably the needle-puncture escapes observation at the _post-mortem_, in which case the verdict will be death from heart-failure.

Even if the poison and the puncture are discovered, there is no clue.

The bullet lies some streets away, and is probably picked up by some boy or passing stranger, who cannot conjecture its use, and who would never connect it with the man who was found dead.

You will admit that the whole plan has been worked out with surprising completeness and foresight." "Yes," I answered; "there is no doubt that the fellow is a most infernally clever scoundrel.