A Most Unlikely Hero, Volume 7 - A Most Unlikely Hero, #7

THE HERO GOES INTERGALACTIC!  Alex Ryker has finally accepted not only Gabrielle's feelings for him, but also his own unusual feelings for her-and the other women surrounding him. But just because he's learned to accept who he is and how he feels doesn't mean the problems have ended. Alex's would-be-rival and Gabrielle's sort-of-childhood-friend, Arthur, has a problem on his hands. His siblings have decided he isn't fit for the throne and have sought to overthrow him with a rebellion, while he was away trying to woo Gabrielle for her hand in marriage.
Alex, Gabrielle, and Nyx must travel with Arthur to another solar system entirely and help him stop a war.