Starship Camelot (2023)

From publisher blurb:

The Once & FUTURE King...in the far future!

King Arthur never died. Camelot was never defeated by the Romans. The court of the Once and Future King reigned far into the twenty-fourth century, until the Earth became uninhabitable and its inhabitants fled in a mass exodus. Castle Camelot, the caves underneath, and the Sacred Grove of the Old Gods were all lifted out of the earth and transformed into a generational spaceship.

It still roams the galaxy.

Camelot is a royal court where medieval esthetics mingle with modern science. Knights wield vibrational swords and throw laser lances while riding cyborg horses. Sorcerers brew ash and mugwort in precision cookers. The King and Queen sit in a throne room adorned with holographic tapestries.

Arthur and their court like to think Camelot eternal, but nothing could be further from the truth. While Arthur sometimes rules over a stable court, these are nothing but intermissions in a history marked by upheaval and doom. However, Camelot and its king always rise from the ashes anew.