This volume contains 339 letters between 1806 and 1807. In this period, Constant edites Adolphe and writes both the tragedy Wallstein and his essay Principes de politique. His emotional life, particularly the resumption of his relationship to Charlotte von Hardenberg, features prominently in the correspondence, yet neither his family in Lausanne nor his friends in Paris and elsewhere are neglected. The correspondence also describes in detail important events of these years in which the Napoleonic Era reached its high point.