You may require a shift in perception to enter into Resnick's world of the "other Manhattan", but if you manage it, John Justin Mallory, Mürgenstürm, Felina and the Grundy are all there to be found. I would never have discovered them if not for this puzzle, a puzzle that had lived in the shadows just beyond my perception until the day I caught a certain glimpse of it out of the corner of my eye and began to notice what a curious and compelling image it was. Solving the puzzle is great fun with its unique detective themed design keyed to Resnick's novel that will keep you searching in all directions for the solution. Perhaps you may find, as I did, that the puzzle will compel you to check out Resnick's detective novel Stalking the Unicorn. Knowing the backstory is certainly no requirement to enjoying this puzzle but why not double your pleasure!