Hollow City Edit
The peculiar group arrive at the Cathedral in Hollow City as they are searching for Miss Wren. Underneath the Cathedral, they find the tomb of Christopher Wren, presumably her father, which is also a loop entrance. They arrive at Miss Thrush's Loop.
Tales of the Peculiar Edit
St Paul's Cathedral is featured in the chapter: 'The Pigeons of St. Paul's' in the Tales of the Peculiar.