Excalibur: Restoration (Star Trek: New Frontier) by Peter David

Captain Mackenzie Calhoun finds himself facing an unexpected challenge when he becomes stranded on a mysterious planet. With his crew scattered and under threat, the captain must rely on his wits and leadership skills to navigate the treacherous terrain. As he seeks to reunite his team and restore order, Calhoun encounters a host of alien cultures and unprecedented dangers.

Combining elements of adventure and intrigue, the narrative explores themes of loyalty, resilience, and the quest for identity amid chaos. Calhoun's journey not only tests his capabilities but also forces him to confront the deeper questions about his past and future within the universe of Starfleet.