The Witches' Alphabet: Theban Script
The Theban alphabet is a writing system with unknown origins which first came into publication in the 16th century. It was first published in Johannes Trithemius's Polygraphia (1518), in which it was attributed to Honorius of Thebes "as Pietro de Abano testifies in his greater fourth book". However, it is not known to be extant in any of the known writings attributed to d'Abano (1250-1316).