For those of you familiar with the Rivers of London series by Ben Aaronovitch, if the character of Thomas Nightingale was an Ars Magica mage, what do you consider to be his Virtues and Flaws?
I am of the opinion that the Nightingale has Clear Thinker.
He is not much of a theorist but excellent on the practical side of magic, so I suspect something like Flawless Magic. His reverse aging could be a new Virtue (or a Flaw, if it has hitherto unseen side effects). He definitely has Hermetic Prestige, or something broader - everyone in the demi-monde has heard of him.
In terms of Flaws, he has something related to his backstory with the War, but I'm not sure how I'd represent it with a Personality/Story flaw. His charge to uphold the law may be a Vow. Perhaps Molly counts as a Magical Human Companion.
It's a fun exercise, but surprisingly challenging (at least for me)
On his blog he said Rivers is based on Ars Magica
Molly, and her sister(s), are rather explicitly Fae.
Undeniably based on Ars Magica, but with a few differences. Possibly a more complicated/comprehensive magical system.
The Formae have different names, and there might be a different amount. Spells are mentioned as not only Technique and Form, but as well as verb and noun there are apparently the equivalent of adjectives, adverbs and temporal clauses.
In one case Nightingale almost imperceptibly cast a spell consisting of a string of about 20 Formae, boggling the apprentice still struggling with 3 Formae spells.
In the terminology of the books, yes. In the way they're presented, at least in ArM5 terms, I see them more as Magical beings. But a case could no doubt be made!
In RoL it doesn't seem clear if there is more than one Supernatural Realm.
Agreed - I would probably count it all as Magic, if I were adapting Ars to fit it.
Based on != taken straight from 