“He wanted to get our amiable friend out of his room — that is very clear, and, as the collector never went out, it took some planning to do it. The whole of this Garrideb invention was apparently for no other end. I must say, Watson, that there is a certain devilish ingenuity about it, even if the queer name of the tenant did give him an opening which he could hardly have expected. He wove his plot with remarkable cunning.’’ (Sherlock Holmes)