The Life of Karl, the Iguana

It is only now that I find myself in an adequate state of comfort after a troubling event which occurred yesterday.  Below, I write of these events:

Once again, the beast of yore made its way,  roaring back and forth across my domain.  This lasted only a short time, at which point I took respite behind my ever-warm rocks.  These latter items are strange to me, as they must harbor some sort of magic to remain consistently warm throughout the dark hours of the day.

Suddenly, a host of entities, 6 in total, approached and entered my domain thorough the seemingly unpassable invisible barrier.   One was a small version of another, perhaps an offspring.  One, I recognized from multiple previous encounters.  The others were unfamiliar and generated a low rumbling sound, I believe coming from their mouths.
My fears tripled in magnitude when one approached me.  I briefly considered scurrying under the rocks, but there was no time.  The best course of action was to close my eyes, and appear as rigid as the rock below me.  This tactic worked, as I knew it would, for when my eyes were reopened, my domain was once again empty, as it should be.