Where Shadows Grow

Several months after Nutrexo's downfall, Andi plunges into a new mission: investigating a dietary supplement with unusual, potentially-dangerous side effects. Cyrus wants to help, but he's hopelessly distracted by the painful secret he's been hiding about his older brother. He can't bring himself to tell anyone what really happened that night. Not even Andi.

Meanwhile, Roya is vacationing on a remote island when she makes a chilling discovery. A human skeleton-and near it, a rusty iron key....