Chance, the great beloved of gamblers, lovers, generals and kings, has long held sway over mortal affairs. Whether assuming the form of the goddess Fortuna and her ever-turning wheel, or the abstract mathematic of 'randomness', her favor is universally sought, and her displeasure feared. To the devotee of Chance, the arts of divination may be regarded as her secret liturgy, providing glimpses of the unknown to those she esteems. Into...