This book started so good, a bit slower and with a lot of characters you need to follow. It had an excellent premise of a remote Scottish island where strange and unsettling behavior starts happening

that a curse causes

. The later parts of the book pick up and there are some genuinely scary moments. 
Unfortunately the ending is just so rushed and makes no sense, things seem to appear out of thin air or they have no connection to the plot before. 
The ending is really unsatisfying and opens more questions than answers.
Lastly, the author used a foreign language in the book but didn't really check if his sentences were correct and it kind of made me knock down the review a bit. It felt like a really sloppy thing to do given that the rest of the book has an imaginative and decently researched plot base.