It was a MIV, an unusually big one. Basically a five-layer stack, wasp-waisted. The bottom layer was an engine of the most powerful class in the MIV toolkit. Above that was a fat cluster of propellant tanks. The third layer—the narrow waist—was a single arklet with an airlock on its side—a command module, she guessed, similar to New Caird ’s. Above that was a triad, and on top, forming the fat head of the vehicle, was a heptad. All of it was shrouded in structural webbing. Snared like little bugs in the edges of that web were small modules that she recognized as attitude control thrusters. The most notable thing about the vehicle was her outsized propellant tanks, hinting at a long journey—to where? The thing was keeping station several kilometers forward of Izzy, in a region that had been largely denuded of arklets.