Aiken is a spiritual descendant of Nesbit, which is strikingly clear in the princess-themed fairytales, but she adds extra dimensions of melancholy, precise and often extremely funny attention to detail, and a peculiarly practical feyness. My small provincial town library had a copy of All and More*, the collection from which these are taken, when I was a child, and I read it so often that most of these seemed familiar even after a gap of 30 years. The white heat of book love has died down somewhat, as it does when you grow older, but I still found these stories utterly delightful, bemusing, and my favourite thing, full of why the hell not. A travelling salesman who sells the eggs his pigeons lay on demand. The Wind's daughter, who's disinherited and earns her living as a street cleaner. A literal family tree. Not to mention the Armitages. (These are available for modern times in Small Beer Press' The Serial Garden. Recommended.)
I suspect I appreciate "The Mysterious Barricades" more these days though, having been a civil servant for some time. Though I never made it up to the tea and biscuit grade.
*Omnibus of All You Ever Wanted and More Than You Bargained For.