Vox Mentis

Let one of your own slip, under your breath, when you make it look like you don't think the teacher's in earshot.

i object to letting it out until we know what it does.

however, if you happen to see another student's envelope just lying around, like in their room maybe? Obviously we can't try to use what we find on them, that's against the rules, but just to know wasn't specified as illegal.