The Darkhold

The Darkhold is a book of dark magic that allows readers to see the future, or multiple possible futures as well as alternate dimensions, and secrets most mortals don't need to know. This book reveals it's words in the primary language of whoever is reading it, even if multiple people are doing so (example: If a german person and a robot are reading it at the same time, the German person will see the words in German, and the Robot will see the words in binary).

The risk of this book, aside form learning too much for the brain to handle, is that it can completely entrance the readers to the point they don't even feel things roughly touching them. Removing the book from the reader's grasp or covering the reader's eyes is usually as good way to stop the trance.