The Saturday morning that I paused - at a sunny outdoors market's used-books stall to glance over the motley variety studied into its trays - and happened on a shabby old book among them - I had no clue to what it really contained: an uncanny, new, life-fulfilling code, with major results for its lucky readers. The sometimes stark differences between human natures, I learned, can be predicted from a simple astrology timetable... just two...