Sladek’s second and sadly last mystery novel featuring the foppish Thackery Phin

A group of mystery novel lovers who dubbed themselves “The Seven Unravellers” are being harassed by the mysterious Mr. Green. When the paranoid General, the eldest member of the group, dies violently in his locked home murder is suspected. A mini reunion of the survivors is attempted at the isolated home of one of the members and he too dies suddenly – this time murder is obvious as he is discovered with a kitchen knife in his throat. But he too seems to have been killed by the “invisible” Green since no one could possibly have been near the body…or so they think. A third death leads Phin to realize that a plot is definitely afoot and he is determined to find a mad killer before all of the Unravellers are done in.