I have to disagree with To Say Nothing Of The Dog. Time travel is organized by, and exactly like they would, university historians.

half-drunk and sleep deprived.

I don’t remember that?

But that one and Blackout/All Clear are a great pair. And having looked her up, I see I’ve missed quite a few!

The Domesday Book is pretty tight. Our time-traveling student is trying to get back before the black plague hits her village.

She also has one about the Titanic sinking. Great books, wild rides.

?She has won eleven Hugo Awards and seven Nebula Awards for particular works—more major SF awards than any other writer.