Serial Killer is stunning, and a useful effect to have in the back of your mind - I'm always keeping an eye out for a chance to perform it "impromptu" - hasn't happened yet, but then miracles take time.
Having said that, I think On Mephisto's Shoulder is probably my least favourite of Paul's books - there are some wonderful ideas, but nothing like as cunning as the Gift or Good Vibrations, and the Brook Test is a lovely extension to what was already a superb idea.
Alchemical Tools, of course, is in a league of its own.






















