Ask and you shall receive: Last DADA class Pofessor Perry locked the classroom, poisoned a couple of students with Veritaserum, forced information out of them (about the Book of Mysteria and SAMMO and its members) including the use of the Unforgiable Imperio, and then Obliviated them all, like that.

Terry Weasley principally was questioned and told names, some things about SAMMO, and somehow managed to fight the potion AND the curse back (*see the Reality thread, issue before last) enough to add a little lie about SAMMO; that it was being run by Shwmae as leader to take Leiden from her position and and be named Headmistress instead.

And that's a long story made short. Now students are seeing how they can work though Perry's Obliviator spell, and we are discussing how legitimate that is in the Reality thread.