WELCOME TO ERIS - A SCOTTISH TIDAL ISLAND WITH ONLY ONE HOUSE, ONE INHABITANT. . . ONE WAY OUT. Unreachable from the Scottish mainland for twelve hours each day. Once home to Vanessa. A famous artist whose notoriously unfaithful husband disappeared twenty years ago. Now home to Grace. A solitary creature of the tides, content in her own isolation. But when a shocking discovery is made in an art gallery far away in London, a visitor comes calling. And the secrets of Eris threaten to emerge . . . GET READY TO BE BLOWN AWAY BY THE BLUE HOUR - A DANGEROUS TIME TO BE ALONE.