The Highest Treason

The Highest Treason is a science fiction novel by Randall Garrett, published in January 1961 in Analog Science Fact & Fiction. The story follows Colonel Sebastian MacMaine, an officer in Earth's Space Force, who is captured by the alien Kerothi during an interstellar war. As he navigates his complex loyalties and develops an unexpected bond with a Kerothi officer, MacMaine must decide whether to align with his captors in a bid to influence the outcome of the conflict. The novel explores themes of loyalty, identity, and survival amidst shifting allegiances.