Feeling adrift and emotionally drained, David MacDougall arrives in Scotland for a family matter-but soon finds himself embroiled in something much bigger, a dangerous and ancient Celtic quest. On the Oban ferry on the way to the Isle of Mull, David meets Carina Brodie. More than being drawn to her beauty, he soon finds himself entangled with her on a quest to discover the meaning of a set of mysterious clues carved into a strange wooden...