A gifted young knight named Collum arrives at Camelot to compete for a spot on the Round Table, only to find he’s too late. The king died two weeks ago at the Battle of Camlann, leaving no heir, and only a handful of the knights of the Round Table survive. They aren’t the heroes of legend, like Lancelot or Gawain. They’re the oddballs of the Round Tables, from the edges of the stories, like Sir Palomides, the Saracen Knight and Sir Dagonet, Arthur’s fool, who was knighted as a joke. They’re joined by Nimue, who was Merlin’s apprentice until she…