When The Ghosts Walk was a short story printed in Brown & Watson's 1976 'Planet of the Apes' Annual, featuring the characters from the Planet of the Apes TV series and spot illustrations by John Bolton.
Synopsis[]
As they move ahead of the gorillas, Virdon, Burke and Galen come across another village. They see an unusual old building to one side of the village and notice a gorilla patrol giving the building a wide berth. They later find out that the humans and gorillas of the village believe a ghost lives there. Determined to find the truth, and wanting a safe house for the night, they approach the ruins. After failing to scare them away, the ghost turns out to be Gulik - a reclusive human inventor. The fugitives help him to scare away a group of visiting gorillas and ask him to use his talents to help the humans.