"Ampney Crucis Investigates" made the connections stronger: characters referred to the Leviathan ship and the myth of the Hollow Earth from "The Red Seas"; the otherworldly monsters were given a similar background as in "Stickleback"; and a shadowy antagonist was shown to have a staff with a bust of Hastur's head. Stickleback's son appears in the fourth "Ampney Crucis" story as an adult, London's crime lord in an alternate dimension where the First World War never happened; in the same world, an underground society of cyborg fanatics called "Babbagists" has sprung up around the works of Countess Bernoulli, a "Stickleback" villain.