Fans of Alternity

Antonin's recent post, while fascinating, confused me quite a bit on my first readthrough.

Looks like, thanks to the ever confusing DoM organisation, he doesn't really know who was there, apart from (mainly) those he fired spells at.

The first line utterly confuses me. Help?

I'm reading the rest of the first paragraph as notation of which spells he hit them with (though could possibly be some reference to which rooms they were in? Probably not, but it's what I thought at first): Bonefire for Hydra looks pretty self-explanatory, given that she felt like her fingers were broken. Nihil sensorum (lit. nothing of having-been-perceived in Latin, so something causing lack of sensory function, I guess?) was what he hit Justin with, though why Justin was screaming I don't know. Just a particularly nasty side effect of the curse, I guess.

"w/B" is one thing where I have very little idea what it's meant to mean.

Infidi ("I have cut/ploughed a path into" seems like the most likely Latin translation) would be what he attacked Sally-Anne with. I'm guessing it has the same effect as stabbing someone with something sharp.

The next section looks fairly straightforward, though I'm quite amused with him thinking Linus Moon was helping. Those initials confused me a lot at first. (Especially since LM usually refers to Lucius Malfoy. The idea of him acting as distraction for them was rather odd.)

And of course, he is very confused as to the logistics of it. I don't think I want him investigating the destination of it all anymore than he has already. Fingers crossed.