This is a typical Edgar Wallace crime novel. But that's OK, because I like typical Edgar Wallace novels. The Blue Hand includes elements of mystery, romance, and more than a little melodrama. One of the elements of this story that I find intriguing is Wallace's efforts to include nearly every kind of transportation in use at the time this story was written -- walking, automobiles, trains, biplanes, seaplanes, yachts, steamers (ships), bicycles -- they're all there! And I've probably left out a few. A fun read with a happy ending.