Let's Kill Uncle

A young orphan, recently bequeathed a vast fortune, finds himself stranded on a treacherous island with his cunning and ruthless uncle, a former British Intelligence operative. The boy's only hope for survival lies with a brave and resourceful young girl, who joins forces with him to outwit and defeat his sinister uncle, who employs a range of deadly tactics, including hypnosis, shark-infested waters, fire, and poisonous fungi.