Thin Air by Ann Cleeves

Set on yet another island in the Shetland archipelago, this sixth book in the Shetland Island series is a good one. Just when I thought I had it figured out, another twist appeared and kept me guessing.

When a group of old university friends travels from London to the farthest north of the Shetland Islands to celebrate the marriage of one of their friends, one of them, Elanor, is murdered. Jimmy Perez, Sandy Wilson, and Willow Reeves are sent to investigate. Elanor, a filmmaker, was exploring the folklore tale of the ghost of a child who drowned in the 1920s, but what the investigating team discovers is Elanor's unhealthy obsession with the story. As they work to find the killer, the team uncovers secrets about the myth with links that some want to keep hidden. 

I liked the relationship that is developing between Jimmy and Willow. Jimmy is emerging from the depression that dominated the last book, Dead Water, and is much more interesting. Sandy is gaining confidence in his abilities and is a good supporting character. The plot was twisty and compelling, and the character development added to my overall enjoyment. 

4/5 stars.

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