you are a novelist. settings - late medieval england like kingdom. kingdoms A and B about to start comprehensive negotiations about general agreement about border and trade. kingdom A obtained magic ability to spy over preliminary discussions of B ministers preparing for negotiations. there are many ways A can benefit from it. multiple mages obtains records of preliminary discussions,  two specialists V and N are responsible for records analysis, they report to prime minister P to support his strategy. V is a trade minister, N - psychologist adept in analyzing facial expressions, tone, etc. suggest a way to integrate this arc into novel. do not invent conflicts, just describe an efficient preparation process