At the height of the Cold War, with fears running high and no one can be trusted, a woman must make a risky journey into the Soviet Union to save her sister in Our Woman in Moscow by Beatriz Williams.

Ruth Macallister hasn’t spoken to her sister Iris since 1940, when a serious disagreement forced them to part on difficult terms. Ruth leaves for the United States while Ruth remains in a Europe to stay with a US Embassy official, Sasha Digby, whom she has fallen in love with. Hurt feelings, the war and distance prevents reconciliation. When Iris, her husband and their children disappear in 1948 and it’s discovered that Sasha has been spying for the Soviet Union, Ruth doesn’t know if they’ve defected or been eliminated by the Soviets. With no word she carries on with her life as a successful career woman in New York and puts that part of her life behind her.

The past is brought back in full force when in 1952, out of the blue, Iris sends Ruth a postcard that appears to be a distress signal. Within days, Ruth has joined a daring plot to rescue her sister when she poses as the wife of Sumner Fox, an American counterintelligence agent. Together they fly to Moscow, where Ruth sees Iris again for the first time in 12 years.

What follows is a tense, emotional and dangerous flight from the Soviet Union in a precarious dash for freedom. There are plot twists, flashbacks to the past, the revealing of secrets all bound by the fierce love between sisters.

This is a great read full of intrigue and hold-your-breath moments. If you are following the Online Reading Challenge this year, this book is one of the alternate titles for the April Book Flight,  which explores women spies, intelligence work and sacrifice.