Something else interesting, from Chapter 84:
The old wizard nodded in affirmation. “If any hostile magic is cast on her, or any spirit touches her, I shall know, and come.”
Grievous bodily injury, unfortunately, is not covered under that warranty.
Also,
also a toe-ring with an emergency portkey to a safe location
Now I guess we know why it started with her legs.
The portkey would only work if she was taken outside Hogwarts.
Not true. Portkeys can work in Hogwarts—cf., the end of Goblet of Fire. It’s only Apparation that doesn’t work.
In HPMOR, portkeys do not work in Hogwarts (chapter 63).
Right. I was thinking of the “rip the playing card” portkey, but in retrospect that said to get beyond the wards first.
It seems reasonable for the Headmaster to be able to make portkeys that can bypass those wards.
Something else interesting, from Chapter 84:
Grievous bodily injury, unfortunately, is not covered under that warranty.
Also,
Now I guess we know why it started with her legs.
The portkey would only work if she was taken outside Hogwarts.
Not true. Portkeys can work in Hogwarts—cf., the end of Goblet of Fire. It’s only Apparation that doesn’t work.
In HPMOR, portkeys do not work in Hogwarts (chapter 63).
Right. I was thinking of the “rip the playing card” portkey, but in retrospect that said to get beyond the wards first.
It seems reasonable for the Headmaster to be able to make portkeys that can bypass those wards.