What would happen if Jurassic Park, the world of man-made dinosaurs, were to meet up with micro-technology, the science of extreme miniaturisation? The answer to the intriguing question is supplied by Micro, Michael Crichton's seventeenth novel which, left unfinished at the time of the author's death in 2008, was completed by Richard Preston, himself a best-selling author of eight sciencebased books. The result is a thrilling read from start to finish. In his thirteenth novel, Prey, Crichton - who, along with Arthur C Clarke, Isaac Asimov and Phillip K Dick must surely find place in the hall of fame reserved for modern science fiction writers - explored the world of nano-technology, the making of microscopically small bio-machines. In this, his last book, he conjures a new science: the micro-miniaturisation of human beings to one-hundredth their normal size.