Synopsis by Sandra Brennan
In this 15-episode serial, Detective Spike Holland must solve the mystery of Garr Castle. He does so after he is hired to look into the disappearance of Valerie Howett's sister Elaine. Within the haunted walls of the castle he finds a maze of secret passages, tunnels, trapdoors, and the enigmatic masked man, the Green Archer.
detective, castle, mask [disguise], archery, disappearance, investigation, missing-person, phantom, gangster, secret-passage, trap-door