- You may be looking for the audio story of the same name.
The Eleven-Day Empire was the home base of Faction Paradox. The territory was purchased from King George II of England by Grandfather Paradox under the Gregorian Compact, when that country switched over from the Julian to the Gregorian calendar in 1752, causing eleven days to be skipped from the month of September. The people's belief that the relevant time had been "lost" was sufficient to power the creation of an alter-time state.
The "shadow" London of the Eleven-Day Empire was a mishmash of time-zones, with streets, buildings and landmarks taken from periods earlier or later than its eighteenth century foundations, and should not have been mistaken for the real London of 1752. The authenticity of the Empire's version was irrelevant: what mattered was its symbolic weight. As London had a certain geographical continuity (which is to say, the street layout rarely changed over two millennia), it was possible to walk along a lane which switched from Enlightenment to Victorian to Roman and back again within the stretch of a few yards. (PROSE: The Book of the War)
Six hundred and thirty Mothers and Fathers of the Faction Paradox sat in the House of Commons found in the Empire's version of London. The speaker's chair was empty, waiting for the return of Grandfather Paradox. (PROSE: Interference - Book One) Godfather Morlock sat in the chair on occasion to speak to the members of the Faction. (PROSE: The Story of the Peace)
According to J. Writhing-Crayfish's 1996 novel Never Give A Sucker An Even Break: History's Dodgiest Deals, incumbent Prime Minister Henry Pelham called the compact "an opportunity to relieve the somewhat delusional from the burden of their unfathomably abundant assets". (PROSE: Weapons Grade Snake Oil)
In Mujun: The Ghost Kingdom, the Eleven-Day Empire appears as the eponymous Ghost Kingdom, home of the Mujun Samurai clan. When it is consumed by Lady Wakai, the only three survivors are Kodomo Kami, Kishijoten, and Baron Nichiyobi. (PROSE: The Book of the War)