@Kieran Seymour spotted that it's not just mysteries that have some £3.99 collections on sale right now at Kindle UK - there are some sci-fi/fantasy series collections too. And one of those, Charlaine Harris' Sookie Stackhouse series, is sort of a cross-over to mystery as well, as least in the opinion of
SYKM, and has a collection of the first six titles in the series available. I'm sort of on-strike against paranormal mysteries, have been for a long time, but I did like Harris' Aurora Teagarden series, and at this price may give the series a try. It's certainly popular enough to wonder why, and this is a pretty cheap way to check it out...
link to post in sci-fi thread with info on this (and some other sci-fi collections):
https://www.mobileread.com/forums/sh....php?p=3733285
Oh, and also Harris' Harper Connelly series, also listed at
SYKM, which @maddz spotted (4 books):
https://www.mobileread.com/forums/sh....php?p=3733355