At the height of a summer heatwave, a killer stalks the City of London.

The avenging angel leaves behind a scattering of feathers with each body - but why these victims? What were their sins?

Psychologist Alice Quentin only agrees to help out on the case because she owes Detective Don Burns a favour. But soon she finds herself deep in the toxic heart of the Square Mile - a place where money means more than life, and no one can be counted innocent.

With fascinating characters and a page-turning plot, Kate Rhodes's novels are perfect for fans of Nicci French and Val McDermid.