This post is for the fourth SFF.SE topic challenge of 2022, in which the site's community is encouraged to take part together in asking and answering questions on a particular topic each month. According to community votes on the topic challenge proposals thread, the April 2022 topic challenge is going to be devoted to a work of fantasy writer Neil Gaiman:
What's a topic challenge and how do I take part?
See Announcing a Topic Challenge program for SFF.SE, and also this main meta post. In short, during April 2022 we should all try to either read/watch/consume (in whatever medium) Neverwhere and ask interesting questions about it, or help out by answering other people's questions about it.
Participation is not obligatory in any sense, but those who participate will be forever remembered in the annals of our history. We'll keep a list of all Neverwhere questions asked during April 2022 in an answer to this meta post. At the end of the month, I'll collate some data like highest-scoring question, most-viewed question, highest-scoring answer, etc. There won't be any real-world rewards like in the old days when Stack Exchange was smaller and more generous, but I'll be awarding at least one bounty after the end of the month (assuming there's at least one good answer posted).
Future topic challenges will be chosen by community votes, so come over and propose or vote on suggestions at:
(The Neverwhere answer will be deleted from that thread at the start of April, since already chosen topics shouldn't stick at the top of the thread and distract people from those still to be voted on.)