Approaching the end of a side-stack, they were able to see through the round orifice of a port into the vehicle docked to its far side: a Flivver, or Flexible Light Intracloud Vehicle. These had begun showing up a few months ago; they were the jeeps of the Cloud Ark, the small utility vehicles used to move people and valuable stuff from one arklet to another, or between an arklet and Izzy. Because they didn’t have to operate in the atmosphere, they had the same general utilitarian look as the arklets. But the pressure hull was smaller in diameter, and instead of an inflatable outer hull the Flivver had more practical stuff: two different styles of docking ports, an airlock big enough to accommodate a human in an Orlan, a robot arm, lights, thrusters. At Dinah’s suggestion they had studded the pressure hull with attachment points that a Grabb could latch on to; this made it possible for each Flivver to carry its own complement of Grabbs, Siwis, Buckies, and Nats, which swarmed all over it like crabs, remoras, and sea lice. Instead of being limited by the hard-engineered capabilities of the robot arm, the Flivver was constrained only by the imagination and ingenuity of the programmer inside, telling the robots what to do.