THE BARESCH MANUSCRIPT
This tome of unknown origin was found by Veldinia noblemen in a destroyed bookstore circa 2300. It is currently kept in Eludi Tower.
Three hundred pages long, it is entirely written in an undecypherable alphabet (alphabet is a complex kind of language where every symbol is "part of a sound", unlike our simple and elegant sinusoidal ideogram calligram system), and depicts strange animals - some extirpated species, some even completely unknown to science.
Even more troubling, the Baresch Manuscript doesn't describe our world as a triangle, but as a disc encircled by ten satellites.