"Michael Mcneil" wrote in message...
I recall reading that the general direction of travel was up from the
east of the med along the north of it off the coast at France and/or
Spain then up over the British Isles and on to Scandinavia where the
Swedes think we did it.

As long as the Norwegians don't think the Swedes remained neutral and let
the dust invade them overland via Sweden!

Karl, Orkney