I have been pondering the origins of and evolution of Magic Theory with a view to figuring where it is likely to develop next. Somewhere in the process I have started to wonder what has been taken out.
The secular Magic Theory of Bonisagius was based on the rituals and artefacts of Rome (Mercury, Diana, Mithras), Greece (Hermes, Dionysus), Egypt (Osiris, Thoth, Ra), Persia and included various mysteries (Chaldean, Gnostic, Christian and Jewish) â€“ HoH-TL p5
The first developments of the Theory easily incorporates the sorceries of Trianoma, a prophetic Witch of Thessaly with magical powers based on the Goetic arts of Summoning and Commanding spirits alongside hexes and Chthonic magic. HoH-TL p6, RoP-Inf p140 and HoH-Soc p109
A flurry of other developments incorporates the magicâ€™s of the other founders notably:
Advances in Terram (Guernicus)
Development of spontaneous magicâ€™s (Diedne)
Shapechanging and fertility magic (Mercere)
Divination / spirit magic (Tremere/Tytalus)
Mithratic battle magicâ€™s (Flambeau)
Iconophile Imaginem and Mentum (Jerbiton)
Enchanting items (Verditius)
The various mysteries of Bjornare (heartbeasts), Criamon (enigmas), Merinita (nature lore) and Verditius (runes) werenâ€™t incorporated into Magic Theory. Despite this one could claim that Bonsigaius completed his universal Magic Theory around 800.
Over 400+ years from simple (but elegant) beginnings, Magic Theory has developed further, incorporating the breakthroughs associated with original research (HoH-TL p26), explorations into Ancient Magicâ€™s, and various Hedge traditions. For example the incorporation of ring/circle durations/targets from the Columbae tradition (HoH-Soc p110) sometime in the 9th century?
In 1220 the Order of Hermes may well be reaching its peak with 1000+ wizards active across Europe and accordingly the rate of new breakthroughs may well even equal that of the early years of the founders.
However somewhere in the evolution of the Theory, various powers seem to have been forgotten (or censored) notably those concerned with the summoning of spirits, ghosts and faeries. Trianoma, Tremere, Tytalus and Merinita all possessed these abilities but modern wizards are not taught the ability as part of orthodox Magic Theory.
The ability summoning is still found in House Ex Miscellanea (HoH-Soc, p109) as a major non hermetic virtue. The Goetic arts of Summoning, Ablating, Binding and Commanding (RoP-Inf p 114) all deal with the summoning and manipulation of spirits.
The Summoning, Controlling, Divining and Refining of elementals (Hedge p22) use a similar set of abilities and virtues.
If a wizard possesses one of the Goetic arts it is a fairly simple conversion to Hermetic magic, using the arts of Rego and Vin (RoP-In p124).
So simple that it is as if Bonisagius incorporated such abilities in his finalised Magic Theory back in 800AD.
In the intervening years the teaching of this particular function of the Hermetic arts has been censored, by those meddlesome wizards who think they know best. Presumably House Guernicus and Tremere around the time of the corruption of House Tytalus 961AD, as per Titanoi mysteries HoH-Soc p96
So it should be a relatively simple breakthrough to incorporate such functionality into Magic Theory once more.
Sources of insight would include texts on Magic Theory published before 960, notably uncensored folioâ€™s of the Colens Arcanorum and that ultimate prize an unedited, uncensored version of Bonisagiusâ€™s Principia Magica.
And if players start noticing that such works have been censored how could they fail to start investigating. The road to hell being paved with good intentions.