The air that drifted out of the hidden tunnel was different. The main hallway smelled of dry dust and ozone.
This new tunnel smelled... old. It smelled of rust and oil. It smelled like an old factory that had been left to rot for a thousand years.
He activated [Omnivision]. He pushed his senses down the dark corridor. He didn't pick up any life forms immediately. But he picked up vibrations. Heavy, rhythmic vibrations.
THUD... THUD... THUD...
It felt like giant footsteps, but they were too heavy to be flesh and bone. They felt like metal striking stone.
Daniel looked down at the floor of the tunnel entrance. The dust here was disturbed. He crouched down to get a better look.
There were marks on the floor. Deep, parallel gouges cut into the stone. They looked like claw marks, but they were too clean, too precise.
