Topped the UK #1 in Psychological Thrillers – Kindle Free Store. Immerse yourself in this dark domestic thriller with a locked-room murder mystery twist. Extended family Christmas.Thirteen freshly dug graves.No way out. Every Christmas, the Morrisons retreat to their remote estate in the Scottish Highlands — ten thousand acres of forest, snow, and silence. It’s tradition. It’s what holds them together. But this year, the past has finally caught up with them. A deadly game begins when one guest collapses over eggnog. The cars won’t start. The signal is gone. And in the howling gale thirteen grave-shaped holes, dug by someone who knew exactly how many bodies to expect. As the blizzard closes in and old betrayals resurface, the family’s dark past begins to a child’s murder, a missing matriarch, and a killer who’s waited twenty years for revenge. Tensions snap. Grudges boil over. Blood will be spilled.Because in this family, everyone has something to hide —And thirteen aren’t leaving the estate alive.