Mademoiselle Tumanova did not think that the bet announced to her would shake up the gentlemen officers so much. And Lieutenant Dumitrash could not imagine that his correspondence with Mademoiselle Zi-Zi would be of interest to the Kaiser’s intelligence, which was feverishly preparing for the start of the Brusilov breakthrough... Part of what is described in this book is given from the memoirs of direct participants in those long-ago events, with some real names retained.