Grabing someone and moving them in a way that the head is near the mouth of the troll takes a tiny amount of time. It’s faster for the troll to simple hit her head directly to knock her unconscious.
If I think a bit more about it Hermonine should have been able to portkey away if the key isn’t manipulated in any case. The troll makes noise so she would be aware that something is happening and turn in the direction of the troll. Seeing it should trigger a direct portkey activation.
Anybody who can deactivite the invisible cloak probably has no issue to deactivate the portkey as well.
I wouldn’t plan that way. If I would order the troll I would tell it to knock the person unconscious to prevent the person from triggering port-keys.
Or eat her head-first. That would prevent the activation of portkeys too.
Grabing someone and moving them in a way that the head is near the mouth of the troll takes a tiny amount of time. It’s faster for the troll to simple hit her head directly to knock her unconscious.
If I think a bit more about it Hermonine should have been able to portkey away if the key isn’t manipulated in any case. The troll makes noise so she would be aware that something is happening and turn in the direction of the troll. Seeing it should trigger a direct portkey activation.
Anybody who can deactivite the invisible cloak probably has no issue to deactivate the portkey as well.