In either case you would have got a poisonous dose before you noticed anything amiss." "They are a pretty pair, Thorndyke," I exclaimed.

"A human life seems to be no more to them than the life of a fly or a beetle." "No; that is so.

They are typical poisoners of the worst kind; of the intelligent, cautious, resourceful kind.

They are a standing menace to society.

As long as they are at large, human lives are in danger, and it is our business to see that they do not remain at large a moment longer than is unavoidable.