Redemption Ark

Clavain asked her what would happen when the galaxies met each other and she explained that there were two scenarios, two possible futures. In one, the wolves — the Inhibitors or, more accurately, their remote machine descendants — steered life through that crisis, ensuring that intelligence came out on the other side, where it could be allowed to flourish and expand unchecked. It was not possible to prevent the collision, Felka said. Even a galaxy-spanning, super-organised machine culture did not have the necessary resources to stop it from happening completely. But it could be managed; the worst effects could be avoided.

It would happen on many levels. The wolves knew of several techniques for moving entire solar systems, so that they could be steered out of harm’s way. The methods had not been employed in recent galactic history, but most had been tried and tested in the past, during local emergencies or vast cultural segregation programmes. Simple machinery, necessitating the demolition of only one or two worlds per system, could be shackled around the belly of a star. The star’s atmosphere could be squeezed and flexed by rippling magnetic fields, coaxing matter to fly off the surface. The starstuff could be manipulated and forced to flow in one direction only, acting like a huge rocket exhaust. It had to be done delicately, so that the star continued to burn in a stable manner, and also so that the remaining planets did not tumble out of their orbits when the star started moving. It took a long time, but that was usually not a problem; normally they had tens of millions years’ warning before a system had to be moved.

There were other techniques, too: a star could be partially enshrouded in a shell of mirrors, so that the pressure of its own radiation imparted momentum. Less tested or trusted methods employed large-scale manipulation of inertia. Those techniques were the easiest when they worked well, but there had been dire accidents when they went wrong, catastrophes in which whole systems had been suddenly ejected from the galaxy at near light-speed, hurled into intergalactic space with no hope of return.

The slower, older approaches were often better than newfangled gimmicks, the wolves had learned.