After entering the abyss, Liu Wuxie was in complete darkness and could only move, relying on his instinct.0

After walking for about fifteen minutes, his view suddenly widened. As he had speculated, it was an underground structure. But the layout was intricate, with dozens of passageways branching off in different directions, leading to unknown destinations.0

Oil lamps hung on the walls, their flames flickering, casting a faint light just enough to make out the surroundings. The lamps had likely been burning for countless years without ever extinguishing.0

"Deepsea flood dragon's oil!" Liu Wuxie was inwardly shocked. The oil in the lamps was extracted from Deepsea flood dragons, and a single drop could keep the fire burning for thousands of years.0

But how had the azure flood dragon ended up here? Could it be that one of the flood dragons had been left behind after the oil was harvested, surviving in isolation and eventually transforming into a dragon after countless years of cultivation?0

It was highly likely that this flood dragon was the last of its kind. Perhaps, as a small hatchling, it had managed to avoid capture, remaining trapped beneath the mountain for centuri...0