Cormoran Strike is contacted by a worried father whose son Will has joined an opaque religious community in rural Norfolk. The Universal Humanitarian Church presents itself as a peaceful organization dedicated to creating a better world. However, Strike soon discovers that beneath the harmless facade lie sinister machinations and unexplained deaths.

To save Will, Strike's business partner Robin Ellacott travels to Norfolk to join the cult and live incognito among its members. But she is unprepared for the dangers that await her there, let alone the price she will have to pay.

Also, read the other novels in the gripping Cormoran Strike series. All volumes can be read independently.

“With Cormoran Strike and Robin Ellacott, Galbraith/Rowling has created an immensely colorful and multi-faceted detective duo. Their dialogues are sharp without trying too hard to be funny, and the characters are well-developed.” Hamburger Abendblatt.