The sinister puzzle of an FBI linguist’s past is far from finished in a gripping novel of twisted family ties, from USA Today bestselling author Brianna Labuskes.

FBI forensic linguist Raisa Susanto thinks she’s through with the past now that her psychopathic serial killer sister, Isabel, is locked away forever. Then Raisa receives a letter from Isabel. It’s just a single message: By the time you read this, I’ll be dead.

Soon after, Isabel is discovered dead in her cell, forcing Raisa back into her depraved orbit—one that includes a band of true-crime worshippers obsessed with Isabel, her killing spree, and those who survived it.

When a new victim is killed in the same manner that made Isabel notorious, Raisa and FBI forensic psychologist Callum Kilkenny aren’t just tasked with finding out who killed Isabel and why. They’re hunting for a protégé following in Isabel’s footsteps. Raisa must uncover the truth—whether or not she’s ready for it—before someone else dies.

Published
May 27, 2025
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Raisa Susanto

The series

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Set against the simmering backdrop of cultural tensions and personal secrets, the Raisa Susanto series pulls readers into a labyrinth of intrigue where loyalty and deception blur. At its core is Raisa—a character shaped by resilience and shadowed by the complex past she can’t fully escape. As each installment unfolds, the series digs deeper into themes of identity, power, and the price of survival in a world that demands constant vigilance.

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The atmosphere is charged, a careful balance of suspense and emotional depth that draws you in not just with its twists, but with the raw humanity at the heart of every choice. The narrative thrives on unexpected alliances and fraught relationships, set amid richly detailed environments that bring the story’s world to vivid life without ever overwhelming the emotional pulse.

Fans of layered thrillers will find themselves pulled into the series’ dark corridors, where nothing is quite as it seems and every revelation raises the stakes. The storytelling style leans into sharp, tense prose that keeps momentum while allowing moments of quiet reflection—creating a rhythm that echoes the precarious tightrope Raisa walks.

Whether navigating complex family dynamics or confronting external threats, the series challenges readers to question how far someone will go to protect what matters most. For those drawn to thrillers that combine atmospheric tension with intricate character work, this collection offers a gripping, immersive journey that lingers long after the last page.

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