De Vermis Mysteriis

"The book was created by two brothers. Twins, in fact. Identical twins—an aspect of their relationship which is actually quite important and may explain much about the De Vermis Mysteriis itself."

- Samuel Gibson

The De Vermis Mysteriis is a magical spell book created by the De Vermis twin brothers in the 16th century. Mileager created the book in his journal, recording recipes, spells and his experiences, including his changing relationship with his brother.

After a long sibling rivalry, Mileager sealed his brother inside the book. On Halloween, 2001, Malvolio was freed and the brothers fought each other.