The tenth story in The Innocence of Father Brown is entitled 'The Eye of Apollo.' At the beginning of this short story, Flambeau has just opened his detective agency in a new building located near Westminster Abbey. The other tenants in the building are a religious charlatan named Kalon, who claims to be 'the New Priest of Apollo,' and two sisters, who are typists. Flambeau and Father Brown instinctively distrust Kalon, who has installed a huge eye of Apollo outside his office.