The Missing Years by Lexie Elliott

Worldwide news producer heads back to a lonely country home in the Scottish Highlands with her younger half-sister in tow. Ailsa doesn't have fond memories of the old place or of the town that she and her mother left quickly as soon as her dad disappeared with a small fortune in diamonds never to be seen again. Now, she just wants to clear up the paperwork, find a buyer and get back to her job but that proves to be difficult because the house and someone else doesn't want her there. The younger generation of townies seem willing to have Ailsa and her sister stay but they seem to be hiding secrets as well. This is a first-rate thriller that will have you paying attention to shadows at the corner of your eye and all those spooky weird house sounds at night. There is plenty of building tension, sinister going-ons and a nice mix of creepy haunted house undertones.