Previous Time Lucky by Chris Robb. The author of this book has predicted the recent announcement by CERNE that light is not the fastest thing in the universe. The book is more of an adventure/thriller/crime novel than sci-fi, but it's very funny, well plotted and well written, with great characters - particularly Vince and Mario, the mafia hit men who find that brains beat brawn this time. Sci-fi fans will love the geeky, unconventional character Mike, who although only a teenager, is able to out-think a whole crime family. Brilliant stuff.