After a long fall into the thick darkness, Prometheus finally noticed a light below. Subtle at first, it grew stronger with each passing second until he finally could see as clearly as in daylight. A moment later, without needing to do anything, a gentle mattress of vegetation entangled him, breaking his fall before lowering him to the ground.
He scanned his surroundings, realising he stood in another cave, one deeper in Earth's crust and of much greater significance. Because before him stood a towering vibrant crystal pulsing vigorously like a heart.
"Earth's core," he muttered, closing his eyes to enjoy the harmonious beating and feel the boundless life force animating it.
"We don't have much time left. Most creatures have been digging after they wiped out the continent they appeared on. Worse, each swarm is led by a terror of the sixth-tier, five by a seventh-tier and... one by an eight-tier."