Do the crime thing all the time, Quentin Jardin where the cops all remind each other what rank they had achieved since the start of the (Skinner) series

are usually read at one sitting and a good, completely unrealistic, romp.
And for the classic whodunnit fans, Frances Durbridge is a GOD, wrote for radio serials first so every chapter has a cliffhanger and at least one statement on a par with -
"Looks like a woman's handwriting"
But also have a far seedier secret. An almost complete set of Chalet School under the stairs.
