Auron reluctantly complied with his wishes going deeper into the lair to be with Tuor and rest in the hoard chamber.  She did however cast alarm on the upper platform first.  A hour after she left, the ground shakes slightly with footsteps as a great wyrm slowly enters the chamber, followed by about a dozen younger dragons ranging from very young to young adults.  They confidently make their way down the central path heading for Genis slowly.