Yesterday I finished reading Clare Langley-Hawthorne's second Ursula Marlowe mystery, The Serpent and the Scorpion, which I will write about later. I really enjoyed it, so much so that I was completely taken up with the story and hadn't been thinking about what was up next (which I tend to do a lot when reading--thinking of the next book up without having finished whatever happens to be in progress). I was all set to move on to Tana French's first novel, which I've been meaning to read for ages, but now I feel very drawn to the 1920s and 30s, so I might stay with that period for a while longer.
A quick scan of my mystery bins netted me a few to choose from. I really enjoyed Ngaio Marsh's first Inspector Alleyn mystery, and I expect them to get better with each installment. The next in line is Enter a Murderer, which is set in the theatrical world. I get the feeling, which may or may not be correct, that Rhys Bowen's Her Royal Spyness is a bit spoof-ish. Anyway, it seems to be on the lighthearted side as one reviewer called it a "romp". I don't read enough Agatha Christie and she is certainly a classic 30s mystery writer. I like the idea of an enclosed murder, one taking place on a train with Murder on the Orient Express. Lock 14 is one of Georges Simenon's earlier Inspector Maigret mysteries. It's also quite short and would be instant gratification as I could read it quickly.
The last two seem to be in the same vein as the Langley-Hawthorne mystery with a female sleuth, both stories being set post-WWI, however. Both of these authors have published several mysteries, but I have yet to try any of them. The first Laetitia Talbot mystery, The Tomb of Zeus, is set in 1928 Crete. Laetitia is an archaeologist (which reminds me of Amelia Peabody, though I suspect the mysteries are quite different). Jade Del Cameron is an American sleuth. Mark of the Lion, also the first in the series, is written by Suzanne Arruda. Jade grew up on a New Mexico ranch and drove an ambulance in WWI. Mark of the Lion is set in Colonial East Africa.
They all sound good in their own way, so I'll take my time looking them over and deciding.