You are in the deserts of South Africa, 255 million years ago.

The humid air of the Permian basin clung to your skin, smelling of sulfur and decaying giant ferns. The desert air wasn't just hot; it was dead, vibrating with a silence that hadn’t been broken in millions of years. You were crouching near a sandstone outcrop, adjusting your gear, when a low, wet growl shifted the air pressure behind you.

You froze. Your gaze landed on the skull-sized footprints—three-toed and deep—crisscrossing the dunes nearby. This wasn't a nightmare; you were looking at a Gorgonops.

It was no larger than a tiger, but it carried the raw, terrifying power of a 300-kilogram killing machine. Its snout was thick, crowned with two six-inch sabers that protruded downward like sharpened daggers, ready to tear through hide and bone. Its limbs were placed directly beneath its robust body, unlike a reptile, enabling it to move with a terrifying, mammalian gait.

When you finally turned, its amber-yellow and cold eyes appraised you as food. It charged straight for you, its jaws opening wider than 90 degrees, revealing a terrifying, gape-like maw…