As it happens, Philip, I'm working at the moment on a faintly supernatural secondhand bookshop story, which ties together a few different strands of thought elicited by Lunar Whites, that coincidental flurry of bookshop articles on Pitfall, and other stuff, Medium-related and otherwise.

It's not in any way a continuation or rework of yours, but certainly fits into the mould of 'story indirectly prompted by another story', and if I end up publishing it here, I'll be sure to give you a mention.