The Dawning of Deliverance #5, in The Russians series, by Judith Pella
Mariana refused the life of an aristocrat and decided to do something more meaningful with her life. She trained as a nurse and went to the front lines in Manchuria to care for the wouned soldiers. She comes face to face with the harsh realities of war. Daniel Trent is an American reporter who betrayed her once before. She is concerted it is unsafe to trust him now. Revolutionary forces gain momentum in their quest for freedom back in St. Petersburg. One man is on a mission for revenge. What is his plot to kill Mariana and everyone she loves?