Postin' the Tube...

Well, rumour has it that in addition to the assault on JR’s local bookshop, there are posters up for Cold Granite on the London Underground: Camden Town and Lambeth North allegedly. Don’t think I’ll get much of a chance to see them, but it’s nice to know they might be there. Lurking beneath the feet of unsuspecting millions.

Or something like that.
Update:

And this is what they look like


The Scottish Poster for Cold GraniteAs it appears in Scotland
The London Poster for Cold GraniteAnd as it appears on the London Underground