Tube clues to whereabouts of Grimmauld Place (was London Locations)

[a_reader2003]

No: HPFGUIDX 84040

--- In HPforGrownups at yahoogroups.com, "Geoff Bannister" 
<gbannister10 at a...> wrote:
(snip)
Looking at the time taken on the Hogwarts Express day, 
> another area worthy of note would be around Mornington Crescent, 
> which I seem to recall is rush hours only nowadays. Looking at my 
map 
> of London, walking as a group would probably be slower and I think 
> Chalk Farm or Camden Town would be a bit far. The Mornington 
Crescent 
> area is also pretty seedy and run down.
> 
> Geoff

Carolyn:
Although I still think my suggestion of the dilapidated streets to 
the north and east of Kings Cross towards Highbury are a good 
location for Grimmauld Place (with Caledonian Rd as the archetypal 
grotty tube station, 4-5 stops from the centre of town), if it was 
Mornington Crescent, this might be an amusing JKR in-joke. 

There is an extremely funny radio show called 'I'm sorry I haven't a 
clue' on BBC Radio 4, and one of the regular games they play is 
called 'Mornington Crescent'. The panellists are supposedly following 
a set of rules in order to work out the fastest way to Mornington 
Crescent across the London rail network. The joke, however, is that 
they make up the rules as they go along, and eventually arbitrarily 
announce they have reached the destination. It's a show which 
provokes all sorts of puzzled enquiries from confused listeners, and 
I feel might have a waspish sort of appeal to JKR, given our 
interminable picking over of her every word and nuance !