The Cookbook of Common Prayer by Francesca Haig

When Gill and Gabe's elder son drowns overseas, they decide they must hide the truth from their desperately unwell teenaged daughter. But as Gill begins to send letters from her dead son to his sister, the increasingly elaborate lie threatens to prove more dangerous than the truth. A novel about family, food, grief, and hope, this gripping, lyrical story moves between Tasmania and London, exploring the many ways that a family can break down - and the unexpected ways that it can be put back together.