I've got a photo looking from the upstairs down through a hole in the floor. I've sent it to you via e-mail - you might want to post it on the forum.
Talking with the fire investigator this afternoon, his thoughts are that it started in the void between the downstairs ceiling and the upstairs floorboards and burnt its way down.
I was thinking about going to the Fire Brigade and talking to them about their procedures for dealing with this sort of fire - I would hate to attend the next fire and find someone had got badly hurt.
Ian
