"The Second Sleep" a new novel by Robert Harris
 

I recommend this as a source of Morrow Project inspiration

Well...strictly speaking it would be the Atlantic Project, since this is set in the UK.

https://www.penguinrandomhouse.ca/bo.../9780735275133


“late on the afternoon of Tuesday the ninth of April in the Year of our Risen Lord 1468”. A young cleric, Christopher Fairfax, is making his way resentfully to a remote corner of Wessex on the orders of his bishop to officiate at the burial of a village priest.


It's an interesting post-apocalyptic novel. At first, it seems to be a murder/mystery set in the 15th century (but the anachronisms quickly creep in). I suspect it would be a very useful source of ideas for anyone running a scenario that involves a powerful Church that doesn't like "science" and it has some very useful descriptions of a village that survives with a tech level that varies from 16th to early 19th century technology