This is the first entry in a series new to me. I've read and enjoyed the Shetland series, appreciated the for the characters and the atmospheric setting. The atmospheric setting is delivered here as well as three women spend time in a naturalist house to survey the wildlife - a requirement before the proposed quarry can get their permit. Of course opinions are divided as people expect to gain or lose by the decision. But who exactly is behind the killing when one of them turns up dead.
Interestingly, the first half of the book is told by each of the women in turn, up to the point of the killing, giving us in turn additional motives for the killing. And only then does the main character of the series finally make an appearance. And she's quite a character, with a lot of baggage of her own.
I'm looking forward to reading more of these.