The thirteenth man

Summary/Review: "When Commander Charlie Cass, the bastard son of the Duke de Maris, returns from five years in a squalid Syndonese POW camp, he finds that little has changed in the Realm. As always, the King and the nine Dukes are conspiring against each other, but now some of them are plotting with Charlie's old enemy--and as interstellar war looms, they certainly don't need Charlie Cass messing up their delicate plans. Unfortunately for them, that's what he's best at. Which means he'll likely face the headsman's axe.