Crossed Lines - Marie Darrieussecq

Middle-class, middle-aged Rose wonders whether she should leave her husband who drinks too much. But she does too, doesn''t she? And what about the renovations to their holiday house in the south? And then there''s climate change to worry about. When her mother offers her a Mediterranean cruise with her two children, Rose jumps at the chance to get away. But one night they come upon a shipwrecked boat full of refugees. Without telling her teenage son, Rose gives his phone to a young Nigerian refugee. The secret phone connection takes Rose on a journey of discovery -- for her and her whole family.