The Master Detective

The Master Detective gives us the result of "Some Further Investigations of Christopher Quarles," who seems to be Mr. Brebner's Sherlock Holmes, and who has a Watson of a sort on the detective force of Scotiand Yard. In this connection we must not forget Zena, Professor Quarles's granddaughter, whose "foolish questions" so frequently point to solutions of the various mysteries unravelled by the trio.