Alchemy and aliens

Actually, I'm not sure if they are aliens, but it makes for a good title. I've bounced off a couple of Liz Williams' books before - both The Ghost Sister and Nine Layers of Sky had very good stuff in them, but I never quite clicked - and then read Snake Agent earlier this year, and loved it. So I thought I should track down some of her others.

( Liz Williams, The Poison Master. )