Ivan Ilversmith's Illustrative Guide to Impenetrable Protections
This is the first post in a new series, following Ivan Ilversmith, a Magus of the Order of Hermes, a clandestine order of wizards in 13th century Europe from the setting of Ars Magica. Each post will include a number of custom spells invented by me and members of the Ars Magica community on some theme and shared in-character as a folio of these spells to be copied and shared across the Order....