Sara Ortiz of McNally Jackson Books has very kindly offered to let me turn up there and see if anyone else turns up. Had been thinking of something along the lines of brunch but it looks as though the afternoon of Saturday the 9th works better (it's understood in civilised society, of course, that a matinée takes place in the afternoon), so:
I'll be turning up at the café at McN J at 3pm on Saturday Oct 9, and if anyone else wants to come it will be great to see you.
The address is
McNally Jackson Books
52 Prince Street