No one likes to spend time with Kat, because Kat can see the dead. Arriving in Edinburgh to study History, she vows to keep her Sight a secret and live a normal life. But she is soon drawn to the city's historic heart, where spirits roam the cobbles and the bloody past comes alive. There, in the shadows of the Old Town, she meets James - a mysterious psychic who comforts troubled ghosts, who could really use her help... Castle is a standalone paranormal romance, set in Scotland's haunted capital.