Changes

Old lore described Prospero as a desolate, dark planet, where the only good thing about it was its remoteness. [[Mutant]]s and [[Psyker]]s were stated to have lived in reclusion and study. {{Fn|13}} This interpretation of Great Crusade-era Prospero is no longer supported by more modern canon sources, such as *''A Thousand Sons* '' and *''Magnus the Red: Master of Prospero,*{{Fn|13}} '' which make clear the planet was a verdant world and that Tizca had an active social society, including cafes and restaurants, and was not merely a world of reclusive academics.{{Fn|2}}

Similarly, this old lore described Tizca as being situated on the most central of the many mountains of the planet, {{Fn|13}} though current lore places Tizca alongside an ocean bay, {{Fn|2}} which obviously could not be true if it was located atop a mountain that was surrounded by other mountains.{Fn|13}}