It took me forever to get through this one. When I started it last weekend, I got through the first half quickly, then it bogged down. I'm accustomed to better from Rankin, and I am fairly disappointed. Part of it is probably because they reveal on page one that our hero, Jonny, ends up floating headless in an ornamental pond. I kept thinking there would be a twist and it wasn't him, or his head was just invisible (there are invisibility suits - unreliable ones - that surface in the story. Jonny, who has an "imaginary" friend named Mr. Giggles the Monkey Boy, and a history of mental instability, gets a letter challenging him to solve the Da-Da-De-Da-Da Code and win... something. He doesn't know what, but feels he has purpose. This leads to learning of a mysterious song, previously unknown, by blues legend Robert Johnson, a secret meeting of super-secret world leaders (including Elvis), bumbling police, conspiracies aplenty, etc. But about half-way through it felt like it should be done already. Definitely not one of his best.