How far would you go for the one you love the most? When Louise flies to Thailand to find her estranged mother after the Boxing Day tsunami, she fears the worst when she finds only her mother's distinctive bag. In the bag is a beautifully crafted atlas owned by a travel journalist named Claire Shreve, with photos, drawings and mementoes slipped in-between the pages, charting her travels and her thoughts over the years. But where is Claire now, and where is Louise's mother? The journal tells the story of Claire Shreve's struggle to find her place in the world as an infertile woman, and of her turbulent love affair with Milo. Louise treks across Thailand's scarred landscape in search of her mother, exploring Claire's atlas to try to make sense of the connection between this woman and the mother she is so desperate to find. As devastated people are beginning to put their lives back together, Louise uncovers the secrets that nearly destroyed Claire and Milo's intense love for each other — the same secrets her mother has been guarding all these years...