Jack adjusted the satchel slung over his shoulder, ensuring the vials of his newly formulated medicine were secured inside. His new companion, the massive feline-like creature that behaved more like a loyal dog, padded beside him, its large paws making almost no sound against the earth. The journey back to the underground city had been planned meticulously; he knew he couldn't afford any mistakes.
The entrance to the city loomed ahead, the ancient stonework blending seamlessly into the cave walls, as though the city had been grown rather than built. The peculiar energy surrounding the place made the air feel dense, and Jack could sense the unbalanced nature of space-time within its boundaries. He wasn't sure what lay ahead, but he was determined to make a strong first impression.