There was a small gap, just enough to suggest it wasn’t anchored to the wall like it should be. Vanessa’s breath caught in her throat. “A secret door…” she murmured, her heart racing. With trembling hands, Vanessa reached out and tugged at the edge of the bookshelf.
With the secret door ajar, Vanessa and Samantha entered the dim passageway, hearts pounding with fear and determination. The low hum grew louder as they advanced, tension thick in the air. At the end, they found Dr. Henderson, hunched over a table, surrounded by tools.