Welcome to the circus - strange, dirty and shameless, this is the greatest show on Earth.

Sophie Fevvers is a seductress, a braggart and an ariel performer in Colonel Kearney's circus. She is also part woman, part swan.

Jack Walser, an American journalist, is on a quest to discover the truth behind her identity. Dazzled by his love for her, and desperate for the scoop of a lifetime, Walser has no choice but to join the circus on its magical tour through turn-of-the-nineteenth-century London, St Petersburg and Siberia.