To Trust in What We Cannot See is the first book in Dennis Mansfield's series of time-traveling, historical thrillers. The story builds a genre-bending, thought provoking plot around a little known historical fact: During the month of January 1913, Adolf Hitler, Joseph Stalin, Vladimir Lenin, Leon Trotsky, and Josip Tito all lived in Vienna, Austria, near each other, and all regularly frequented the same coffee shop, Cafe Central. At the time, these...