#1 New York Times bestselling author Tami Hoag delivers a shocking new thrillerDana Nolan was a promising young TV reporter until a notorious serial killer tried to add her to his list of victims.  Nearly a year has passed since surviving her ordeal, but the physical, emotional, and psychological scars run deep.  Struggling with the torment of post-traumatic stress syndrome, plagued by flashbacks and nightmares as dark as the heart of a killer, Dana returns to her hometown in an attempt to begin to put her life back together.  But home doesn’t provide the comfort she expects. Dana’s harrowing story and her return to small town life have rekindled police and media interest in the unsolved case of her childhood best friend, Casey Grant, who disappeared without a trace the summer after their graduation from high school.  Terrified of truths long-buried, Dana reluctantly begins to look back at her past.  Viewed through the dark filter of PTSD, old friends and loved ones become suspects and enemies.  Questioning everything she knows, refusing to be defined by the traumas of her past and struggling against excruciating odds, Dana seeks out a truth that may prove too terrible to be believed…

    Meanwhile his wife, English expat Paula, is distraught. Her pursuit of answers is deflected when her neighbor, troublesome retiree Shirley Mobad, co-opts Paula on her escapades around the Canary Islands.Paula’s search for her husband quickly descends into mayhem, danger and intrigue. Before long, she realizes she’s being followed. She needs answers, and fast.But where is Celestino, and will he ever make it back alive? "A Matter of Latitude simmers with danger, betrayal and treachery, drawing the reader into the island’s history of shady dealings and uneasy relationships between natives, tourists and expats... Isobel Blackthorn has crafted an atmospheric and setting-rich novel with alluring lyrical style."  – Sandi Wallace, award-winning crime fiction author