The Hall of Whispers is the most secure location in the Scarlet Lodge headquarters beneath the Eden Theatre. It requires three golden hand keys to open. The Hall itself is a rather small room stocked with books, monitors with an intercom, and a small office desk. After Dr. Austerlitz acquires the Nature of Universes from Victor, he keeps this book in the Hall of Whispers.
A detail-oriented player will notice the Nature of Universes sitting on a pedestal when first entering the Hall of Whispers. After the player picks up the Chaos Key to enter the quarters, the book is gone, foreshadowing Jonathan's secret mission of re-acquiring the book and returning it to Amanda.