"An interface device," Stets said, producing from behind the lilac couch a large carrying case, in rigid black foam, which he placed on the minibar, beside the drone’s charger. It hadn’t looked very heavy. He unfastened latches that reminded Verity of the drones’ Pelican case, and lifted top and sides away as one, revealing a white, featurelessly feminine foam head in a black cycling helmet. Studded with a variety of black components, it looked like a not-very-enthusiastic cyberpunk cosplay accessory.