When a postgraduate student of African languages, looking for a topic for her doctoral thesis, happens upon an obscure and incomplete lexicon of metaphorical names for indigenous Sanga-Nguni cattle by a long-dead academic, she knows, instinctively, that she has found her subject. She is given access to his papers, his catalogue of index cards and field notes recorded in a remote valley in South Africa in 1946. Among his many photographs is a small print of a delicately patterned cow. In finding it she has, unwittingly, discovered a cipher to his life. In exchanging objectivity for passion, and in defiance of her supervisor's instructions, the linguist becomes the biographer. She begins to reconstruct the life and the lost love of a man long forgotten, to recreate a world to which she can restore him - and, in doing so, restore herself. Fact and supposition, instinct and intuition become blurred, making a new truth ...