Instructions for a Heatwave - Maggie O'Farrell

The heatwave of 1976 makes a good backdrop for this novel about three siblings brought together to help their mother search for their missing father.  It's a gripping read, full of well-observed characters and situations, which uses multiple overlapping scenarios to explore the impact of keeping secrets on relationships and families. I particularly liked the 'wild child' Aoife whose rebellion was forced upon her by a personal difficulty she was unable to acknowledge.