wrote:

Reading all this has been very interesting Jack has I said we never
see any direct services south of the river from up here in Lancashire
hence my mention of Watford and the north .

Found this article on North of London Eurostars:
http://en.wikipedia.org/wiki/Regional_Eurostar

Sadly, looks like you will never be able to step on at Crewe and step
off onto the boulevards of Paris.


Actually, thinking about another question which was asked here a couple
of days ago, Euston and St Pancras are a ten-fifteen minute walk apart.
Wonder if there would be any case for a dedicated inter-station shuttle
when the Eurostar comes online?
I guess it would be easier just to take the Circle line.