That was my post, and my saga.
First game session of the saga, in fact, when we were trying to pull together the various characters founding a new covenant somewhere in the eastern Rhine or Novgorod. One of the companions was a young Volkov (basically a pagan priest). Note that it takes just 6 Virtue points to have the full complement of the supernatural Virtues of a Volkov. The PC also had something like Temporal Influence or Priest or Wise One, basically having the social influence that came from being the spiritual authority of a smallish village (maybe 50 souls?). He also had Self-confident and a few Sympathy-related Virtues and Flaws.
The idea was to roleplay the initial frictions between the newly gauntleted magi coming from the west, and the local pagans - frictions that would eventually turn into mutual respect and a common goal of defending the local faerie and magic landscape against the encroachment of the Divine. Well, the frictions turned out to be a little harsher then expected. One of the magi blatantly despoiled the shrine of the Volkov's god, raiding it for vis. The Volkov decided he'd retaliate, and for some reason I cannot quite remember decided he'd retaliate against the entire Order of Hermes (I seem to recall he had come to perceive the Order as a religious cult affiliated to an evil foreign god). I am not 100% sure of the details any longer, but this is what I seem to recall happened.
The player of the Volkov looked at the RoP:F book and tried to see what he could pull off. Basically, using ceremonial influence, the PC granted himself sympathy traits that would allow him to affect the entire Order of Hermes. I think one was a "Hate for the Order" and another something like "Revenge for the desecration", though I can't quite remember. Then, using Grant, he granted Ceremony to a selected few of his fellow villagers, and with their help he granted Ceremony, as well as the appropriate Sympathy traits, to the entire village. The villagers obviously were almost as outraged as the Volkov and quite happy to collaborate. Finally, all together they cast a massive Conjure Rite with R:Symbol and T:Symbol (and some extended duration, at least a Year; probably Hidden, with the Volkov wearing a costume of the wrathful aspect of his god) that turned the entire population of the Order into some kind of vermin. I think they managed a penetration well in excess of 100, possibly as high as 200. Some 40-50 villagers, each with Ceremony 1 and 6 points of sympathy traits, can really produce a massive penetration even if you use a level 15 guideline (turn humans into something of size -15, snails or worms or something like that) with R:Symbol (+4), D:Year or Hidden (+4) and T:Symbol (+4) with a really generous size modifier (+6 or so, "just to make sure").
As the PC was doing this, the entire troupe was mesmerized. We realized it could just totally break the saga, but you know those situations where you are like too slack-jawed to act? And we really wondered whether it could be pulled off by the RAW. We checked meticulously. And yes, by the RAW it worked; that's the power of Ceremony for you - and after all, the Volkhvy are famous for their massive rites, so it made sense within the story. Basically, virtually the entire Order was turned into vermin, most to be eaten, squashed or otherwise killed by natural dangers within the next few weeks (even a senior Bjornaer has a lot of difficulty resisting a 21st magnitude effect with his Heartbeast).
That was the starting point of our new saga: PCs were senior apprentices, left as the sole heirs of the Order (after all, an apprentice is not part of the Order yet!). Exploring abandoned covenants (abandoned by the magi, at least), trying to rediscover the Parma magica (while fighting off the negative social effects of the Gift), dodging the occasional renegade (magi cast out of the Order did not get hit by the curse!), the entire saga was about trying to find a way to break the Curse (which meant finding the cause of the Curse in the first place!). It was a lot of fun, and I don't regret a single instant allowing the Volkov to fire off his curse.