You're a regular person who has made the acquaintance of a dangerous unnatural creature. Are you a friend, a lover, food, or something else? This solo tabletop role-playing game is a direct sequel to the award-winning Thousand Year Old Vampire!

When the anomaly appeared at the Earth's core, the Substratum Protocol was initiated. You are the best and brightest scientists we have left, our last hope to stem the apocalypse. You are the Substratum Expedition Team. Descend. Learn. Survive.