History
The Buchcub is a magical book that was written one word at a time by the Grigori over the course of over a century. After its completion in 1082, it eventually ended up in the Collector's Collection. The Collector traded it for a rare John Wilkes Booth penny from another universe to Wyn, who tricked Cubisk Core into reading it. As the book eats the mind of the reader, Wyn was able to defeat him.[1]
Properties
Memory Erasure: The Buchcub erases knowledge from its reader's mind. Once it is read, the reader cannot stop unless an outside force frees them.[1] The rate in which the Buchcub consumes the reader's mind is frightening fast. Cubisk Core's mind was reduced to that of a child after only a few seconds of reading.[2]