INTO THE WATER by Paula Hawkins, Penguin.

Paula Hawkins hit gold with her first novel, The Girl on the Train, and has followed up with another psychological thriller set in the British town of Beckford, where women have been drowning since 1679 – and still are. The deaths in “the drowning pool” are interpreted as suicides but there’s no explaining why a single mother writing a book on the pool should have thrown herself into its waters – especially as she’s left behind a teenage daughter whose best friend also drowned months earlier. An investigation turns serious as secrets are brought to light and connections are drawn between old and new deaths. Hawkins is a clever plotter, although her tale is twisty and she throws up many suspicious characters, so it’s easy to get lost on the way through.