THRILLER OF THE WEEK

Cathi Unsworth’s latest thriller, That Old Black Magic (€18.19), paints a startlingly original picture of Blitz-era Britain. This is a scared and superstitious country in which mediums thrive, and the fear of spies is rife. The discovery of a woman’s body stuffed into the trunk of an elm tree is the starting point for a gripping and unpredictable occult mystery.