Celeano Fragments

A relatively recent occult grimoire, the Celeano Fragments were written by Dr. Laban Shrewsbury of Arkham, who claimed that he transcribed the text found from books he read in an otherworldly library orbiting an alien planet. The Fragments live up to their name – they are a disjointed, confused jumble of concepts and references. The original copy of the Fragments was deposited in the Miskatonic University library by Shrewsbury prior to his disappearance; the Black Chamber confiscated the book in ’44, but by then, copies were already circulating in academia and the occult underground.
On their own, the Fragments are next to meaningless. Trying to discern any structure or narrative is futile; the book jumps from topic to topic even within the same sentence, and is so confused that many occultists believe the whole thing is written in an abstruse cipher that happens to look like plaintext. For those with considerable knowledge of the Cthulhu Mythos, though, the Fragments draw connections between existing, previously disassociated pieces of knowledge. A fragmentary description of a piece of inhuman art with suggestive curves might be meaningless to most readers, but for that rare reader with both an understanding of Dho-Nha geometry and the culture of the Dogon people of Mali, it illuminates the secret history of their cosmology.
A character who reads the Fragments may add one-fifth of their current Cthulhu Mythos score to their Cthulhu Mythos. For example, a character with Cthulhu Mythos 10% would add 2% (10÷5), while a character with Cthulhu Mythos 40% would add 8% (40÷5).