The man squatting across from Hawat was a Fremen who had come across the sink in the first light of false dawn, skittering over the sand, blending into the dunes, his movements barely discernible.
What's even more eerie, is that while that sound may have made you want to crawl out of your skin and skitter towards the door, the chemical itself has a similar effect on ants.
If Dad had caught me with a book when I was supposed to be working, I'd have skittered, but Tyler was steady. " Dad, " he'd say. " i'll w-w-work after ll-lunch. But I n-n-need the morning to s-st-study" .