1863: War anxiety in Europe. Western powers are demanding that Russia stop fighting against Polish rebels, threatening to intervene. Emperor Alexander II decides to redeploy Russian squadrons to North American ports in order to attack the communications of the British and French from there. But the United States is also at war: the South is fighting against the North. American politicians are mired in intrigue and corruption, and Russian sailors for them are just bargaining chips in their own calculations. Semyon Rodionovich Kostenko, an official for special assignments at the Ministry of Foreign Affairs, will have to figure out this intricacy of high interests and dark affairs. Ahead of him lies a struggle with the enemies of Russia, political crooks and scammers from his own department. Whose will he take? The novel “His Majesty’s Agent” tells about this and much more.