Meg Aerin and Tessa Finn are prisoners of the mind. Trapped in a neuroscience institute that has erased their names and broken their will, they've learned to survive in a system designed to make them complicit in their own destruction. But when they encounter Oona Reyes, a woman who moves through dreams like a ghost through walls, everything changes. Together, they descend into the institute's deepest secret: a fusion of ancient ritual and modern technology, where the line between investigation and participation dissolves. What they uncover isn't just evidence of a crime. It's a doorway to something older, stranger, and far more seductive than escape. Some thresholds, once crossed, reshape everything they thought they were.