Agatha Raisin and the Witch of Wyckhadden: Agatha Raisin, Book 9 (Unabridged‪)‬

Suffering from bald patches thanks to a hair conditioner spiked with depilatory cream - supplied by the murderess in her last investigation - Agatha escapes to the coastal resort of Wyckhadden to allow her crowning glory to recover in privacy. A local witch provides her with hair tonic, and Agatha's lost locks begin to grow - but then the witch is found bludgeoned to death.

The elderly residents at Agatha's faded hotel seem innocuous enough, if a little odd. But, as she enquires into the murder, she turns up an alarming number of secrets....