" seen Sitterson knew what was happening: in the mechanism older than Man, a small metal hammer struck a glass vial, cracking it from top to bottom and releasing the blood retained inside. The blood ran into a brass funnel that extended into a long, long pipe, running even deeper through rock and dark spaces, emerging eventually into a place deeper still. Here, the "

― Tim Lebbon , The Cabin in the Woods: The Official Movie Novelization