When a missing surfboard proves to have hidden depths, twelve-year-old super-sleuth Steve Brixton must go undercover--and underwater--to tackle a puzzling tangle of mysteries. Steve Brixton's finally gotten a hang of this super-sleuth thing. After a few months of busting bad guys he finally has his own office--even if it's a bit small, and outside, and okay, used to be a doghouse. So when someone asks him to help track down a...