Why was Nora invited to Clare's hen party? They haven't spoken in ten years, and they did not part on good terms. Despite her reservations, Nora goes off to the hen party in the woods, with disastrous results.

I super hate amnesia as a plot device, so that ticked me off straightaway. A fine mystery, and I knew it had to be one of the bozos, but this was no Girl on the Train. I also wish it were more British, because this book could have taken place in any woods, anywhere.