This space was vast and undoubtedly filled with many mysteries, but Rowan was not chasing after the mysteries of the mundane, only the extraordinary, and nothing was more extraordinary than the matters involving the Primordials.
Each of the caverns underneath the capital was so massive that one could comfortably fit in a small moon inside any of them. A similar spatial shrinking that twisted the entire capital also affected this area and hiding the Crystal Leviathan was not difficult.
Placing a piece of his consciousness inside a Spirit Guise he sent it out towards the Anchor. The Spirit Guise took the form of a bird with flaming wings, for there were living things down here, and their shapes had been transformed by the arcane energies inside these caverns.