The Four-Handed Game — Paul D. Gilbert

Holmes and Watson find themselves bombarded with an absolute avalanche of dramatic cases! Holmes enrolls Inspectors Lestrade and Bradstreet to help him play a dangerous four handed game against an organization whose power and influence seems to know no bounds. As dissimilar as each case seems to be, robbery, assault, and gruesome murder, Holmes begins to suspect that each one has been meticulously designed to lure him towards a conclusion that even he could not have anticipated.