David Nicholls is the master of relationship novels, and this latest one doesn't disappoint. It tells the story of two very different people, both damaged by recent relationships, who find themselves walking across the north of England together, over about 10 days. They endure bad weather and misunderstandings, but form a new friendship together. But could it be more? Will it be more? That's the central tension in this atmospheric, plausible, dialogue-rich novel, and the ending is very satisfying.