Thanks. I've learnt a lot from this thread, and you made me wonder if she did make that snap decision to go 'off-piste' from the top of P du Salv.SvenS, I have very much appreciated your comments on here. Because I straddle between the two theories, and a lot of what you have written re the accident theory makes sense to me. Plus you helped me get clearer in my mind that she probably went West and never did go East. Maybe she always went West and could possibly have had the accident that night.
There are a lot of unknowns. It's possible that she made it to the refuge and there was an unknown stranger there. Maybe the partner managed a midnight dash. But they just seem like outliers to me, particularly the possibility of a 100 mile nightime journey when France was locked down. The chances of being pulled over by the police would be so high. She was so far from her intended route and there are plenty of closer places that would have been suitable for framing an accident; would a potential attacker really go so much further than necessary? Towards a pass where there might have been other hikers and give her a chance to shout/call for help? As for the tent, it's ultralight, the material is very thin and it's more like a tarp with a fly screen. I think it would have ripped and fallen to shreds if you tried to carry a body in it.