The Theban Alphabet
(also known as the Witches Alphabet or the Runes of Honorius).
This script was supposedly devised by Honorius in the 12th century as a cipher.
It is has been adopted by many modern-day witches, and is used in spells and Books of Shadows.

Theban characters are not actually Runes, they have only been referred to as the Runes of Honorius and have also been called the Witches Alphabet due to Wiccans and Witches using this alphabet to hide their spells and rituals usually in their book of shadows.  The magical realm have also used these characters, carved in stone or wood, for talismans and charms.