When Sandy Gray attends an Edinburgh auction and buys Lot 70 - a collection of assorted postcards - he has no idea this seemingly innocuous purchase is about to turn his life upside down... He finds himself reluctantly drawn into a dark and dangerous underworld inhabited by marginal people. These unscrupulous individuals want possession of Lot 70 very, very badly. So what is the key to the secret they hold? Sandy, again aided by his friend Billy, travel to the seaside towns of Dunbar and St Andrews in order to solve the riddle before it is too late... The Grey Man Buys the Lot, the second in the Greyman series, is dark and humorous and will keep readers both amused and enthralled.