So I met with Lynn's principal yesterday, I was heard!!
He was very understanding, and horrified to hear what I had to tell him.
Apparently he knew of Miss A's illness, after the day had ended.. she and her co-hort had neglected to tell him of the incident with Lynn and the stranger (to them) who returned her.
He didn't like that.
But he has a plan, for all of my issues with this teacher.
I am reassured.
And, as I ponder on it more, there's only two months left of this circus anyway :D