Their Burning Graves by Helen Phifer

They are picture perfect. A young, happy family sat around the kitchen table. But no one moves as wisps of smoke filter into the room and the house becomes a burning grave around them…

When reports come in of a family trapped in a burning house, Detective Morgan Brookes rushes to the scene. But as soon as she enters the ruined home, she is devastated by what she finds. Tied to the kitchen table, Sally and David Lawson, and their young son, had no chance of escaping the flames and the smoke…
Neighbours all agree the Lawsons were the perfect family, and CCTV shows nothing suspicious. Morgan’s only clue is the silver crucifix necklace around Sally’s neck. Because according to friends, she wasn’t religious. Was someone passing divine judgement on this mother and her family?
Focusing on Sally’s last steps, Morgan gets the breakthrough she needs – just days ago Sally had confided in a friend that she felt someone was watching her. And when Morgan finds photos of Sally on her neighbour Luke’s phone, all the pieces slot together.
Only then another local woman reports feeling watched. Nothing seems to link her to Luke, but Morgan can’t ignore it. Could the killer still be out there? Going deeper into Sally’s past and uncovering the killer’s motivations is her only chance to save more innocent lives, but can she solve the twisted puzzle in time?