Though the period covered in this volume is less than half a year -- from March to late July 1938 -- it was one of crucial importance, for it saw the groundwork laid by London and Paris for their abandonment of Czechoslovakia at Munich the following September. The main thread of this unhappy story is already known, but a few strands are added in this documentation which do no credit to either the wisdom or the courage of those who presided over French and British policy.