hmm, i dont remember the convo of "A Magician's Secret" very well since i havnt been that low lvl in a while, but i dont remember it like that. i misinterpreted it as him accidentally summoning the vampires to Ainle then. still though, the Pontiff court had something to do with it, regardless of if they summoned it or not.
Here's the wiki page of the chats. http://www.vindictuswiki.com/wiki/A_Magician%27s_Secret
One of the hints that it was glas rather than the Vampires is this image.
[Image: http://puu.sh/4Rzd]
Also, Pontiff did try to control Glas for their own use (probably against the fomors). When they failed though, Reilly sealed him back into the Catacombs(assuming this because he mentions that it was a "fun" night with a monster with a "big toy").