[No offense, doc, but he's a really shitty texter. Nate switches the function with a sigh.]

The bones were old, I know that much. Haven't been moved in at least a hundred years. But there was this...impression in the sand leading from each creature into the dark, like a heavy rope had been tied around them.

If it was a chain it might've still been down there, but whatever kept them tethered was organic, so it's already gone.