The first in a new mystery/thriller/suspense series by Emerald O'Brien. A bond stronger than blood. A connection that could end it all. Madigan Knox and Grace Sheppard became sisters the day they entered their foster home. After living through a childhood nightmare, one brave act set them free, but split them apart into different homes. As adults, they are reunited in the small coastal town they dreamed of living in as children, but the reality of life in Tall Pines is far from what they had imagined. When a woman is found dead​ in her home​, Madigan reports on the crime while Grace investigates. A dark connection to the victim is discovered, pulling them both closer to the crime and the traumatic past they are desperate to move on from. With old wounds ripped open and dark secrets threatening their bond, the sisters must rely on each other more than ever before to survive.

They vowed to love each other forever… When a dead body is discovered outside the Tall Pines reception hall, Detective Grace Sheppard is called to the scene. Searching for the truth among deceitful suspects and within herself, Grace struggles when her professional relationship becomes muddled with attraction. They swore nothing would come between them… As Grace races to find a killer, a personal vendetta is formed when her sister, Madigan Knox, becomes obsessed with a traumatic event from her past. Madigan’s hunt leads her closer to the truth than she has ever been and further away from the person who loves her the most. But promises are broken, and the secrets they keep threaten their lives. Both sisters are willing to find their culprits at any cost, but will the price of secrets and revenge be their demise?

An accident or a homicide? Detective Grace Sheppard arrives at the scene of a car wreck in Tall Pines that appears to be an accident, but could it have been more than that? After looking into the victim of the crash, Grace discovers another mysterious death linked to the young man. Under pressure to solve the case from the police chief, Grace sets out to find the truth with help from Officer Adam MacIntyre and Medical Examiner, Raven Lockwood. But Grace soon learns that Raven is dealing with her own mystery. A secret admirer or a stalker? P.I. Madigan Knox is on a mission to find someone. Her biological mother. As leads on her mother's whereabouts run dry, Grace asks Madigan to investigate a mysterious gift Raven received after a date gone wrong. Madigan is determined to find the person responsible, but when another gift is delivered, she questions her abilities and fears for Raven's safety. Grace and Madigan delve deeper into their respective cases, and as questions lead to more discoveries, one thing is clear: someone is watching, protecting their secrets at all costs.