Haereticum
The Haereticum, (TV: Extremis [+]Loading...["Extremis (TV story)"]) also named the Hereticum, (PROSE: "Earth" [+]Part of Whotopia: The Ultimate Guide to the Whoniverse, Loading...{"namedpart":"Earth","1":"Whotopia: The Ultimate Guide to the Whoniverse (reference book)"}) meaning the "library of blasphemies", existed in the Shadow World as a virtual construct. (TV: Extremis [+]Loading...["Extremis (TV story)"]) The library was located underneath Vatican City, with a deliberately confusing layout; at the centre lay a cage, which contained the most blasphamous text of all: The Veritas. This text (PROSE: "Earth" [+]Part of Whotopia: The Ultimate Guide to the Whoniverse, Loading...{"namedpart":"Earth","1":"Whotopia: The Ultimate Guide to the Whoniverse (reference book)"}) Like the rest of the Shadow World, it was created by the Monks, so that they could plan the perfect invasion of Earth. (TV: Extremis [+]Loading...["Extremis (TV story)"])
History
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It was founded by Pope Benedict IX in the 11th century.
It was visited in 2017 by the Twelfth Doctor, Bill Potts, Nardole. (TV: Extremis [+]Loading...["Extremis (TV story)"])