The Blackett girls' uncle, nicknamed 'Captain Flint' by the children. He withdraws to write his memoirs and becomes unfriendly, serving as the common enemy that unites the rival groups. He is eventually tried in a mock battle and forced to walk the plank on his houseboat.
Peggy Blackett is the niece of Uncle Jim.
Explore the full interactive character relationship map of Swallows and Amazons