Analect of Magic

Only a wizard of 18 Constitution and 18 Intelligence may read this tome and they must lose one point of Constitution when they do so.

This book allows a wizard to memorize any spell no matter what level or class. Reading the Analect of Magic requires 72 hours of uninterrupted study, and after using the ability gained from it, the reader forgets everything they read. When used in conjunction with the Canon of Changes this book has other special powers.