When a young man’s girlfriend mysteriously vanishes, he is heartbroken – and determined to find the imaginary town where he suspects she has taken up...

When a young man’s girlfriend mysteriously vanishes, he is heartbroken – and determined to find the imaginary town where he suspects she has taken up residence. Thus begins a lifelong search that takes the man into middle age, to a job in a remote library with mysteries of its own, and on a journey between the real world and this otherworld: a shadowless city where unicorns roam and willow trees grow.