"Sard Harker: A novel by John Masefield" is an adventure novel published in 1924. Set in the fictional South American nation of Santa Barbara, it follows Chisholm "Sard" Harker, a ship's mate who overhears a sinister plot against the Kingsborough siblings. Missing his ship after attempting to warn them, Sard embarks on a harrowing journey across treacherous terrain, facing assaults, natural hazards, and supernatural visions. His quest leads to a final confrontation with Sagrado B, a dark magician threatening Miss Kingsborough's life. (This is an automatically generated summary.)