Overstars Mail: Imperial Challenge — Roberta Gellis

Cyn Lystris leaves Free Trade because he is tired of making deliveries with the goods in one hand and his blaster in the other. Overstars Mail offers him a mail delivery job on a government-approved route. Life as a mailman, however, proves no less exciting when Cyn finds himself embroiled in Imperial politics. The younger son of the Mother Empress intends to challenge his corrupt brother for the throne. The Imperial Challenger boards Cyn's ship in disguise, followed by agents who want to capture or kill him. The trouble is that Cyn has no idea which of his six passengers is the Imperial, which the anti-Imperial agents, and which (if any) are just innocent bystanders along for the ride. Beside that, one of the passengers, Aimie, is particularly intriguing in an entirely different way. However pleasant, romantic adventures only add to the confusion. Foiling one attempt at sabotage and diversion from his route after another, Cyn manages to deliver the mail and the Imperial Challenger in a quick-witted, hair-raising ride through the galaxy.