When Catherine Gehrig, a museum conservator in London, falls into grief after her lover’s sudden death, her boss gives her a special project. She will bring back to “life” a nineteenth-century mechanical bird. As she begins to piece the automaton together, Catherine also uncovers the diaries of Henry Brandling, who, more than a hundred years prior, had commissioned the bird for his very ill son. Catherine finds resonance and comfort in Henry’s story. But it is the mechanical creature itself, in its uncanny imitation of life, that will link these two people across a century. Through the clockwork bird, Henry and Catherine will confront the mysteries of creation, the power of human invention, and the body’s astonishing chemistry of love and feeling.