Dread stared down, watching Vargas do... nothing. Perhaps he'd taken the wisdom of the dragon's viewpoint to heart, then. His children were his family; he would not tolerate a thread to-...
Ember eyes narrowed as the faintest caress of failed magicka tried to grip his muscles again. He knew that feeling, already, and he snarled a protest. He would leave; there was no point in staying here, not with Alpha potentially recovering, and with Vargas displaying this strange new magic. Alpha had done something to him, too, at range--he was pretty sure his lightheadedness had been the creature's doing--and it was finally dawning on the dragon that fighting the two of them alone was probably not very wise.
But he'd leave Vargas with something to think about. He turned, banking, flapping up and higher toward Tunnel K--and then angled, sweeping back around, dropping lower and snapping neck low, and jaws open.
A torrent of flames swept out, engulfing Vargas and the area entirely around him, making this final emphatic point. Wings beat once, taking him higher, up and over and past, and he turned and circled back around. This time, what he yelled was not a screech but a bass bellow, no petty words, just a declaration:"THESE ARE MY CAVES."
And with a beat of his wings, he was gone, sweeping out over the bones and out of sight.
Which was all very dramatic, unless you knew that he had to land and waddle, wings-first, all the way back through Tunnel K.