The dunes shift revealing they are not, in fact, dunes but the coils of the sand worm. The sandy leathery hide emerges first, sliding out from the sand. Eventually the maw emerges, blind and ridged with teeth coated in glinting glass, sand melted in the heat of its innards and spat back out. Instinct: to lay waste

• Lunge with snapping jaws
• Heat the sand around it
• Engulf whole