Transformers: Dark Designs — Simon Furman

Up till now, the Autobots thought the scale of their problems amounted to Megatron and his Decepticons... and the odd renegade god. They're about to realise they're playing in a much bigger arena than they ever thought possible, for much, much bigger stakes. Beyond the fringes of known space an ancient power is spreading its malign influence, turning whole worlds, whole galaxies into a dark mosaic of its own design. A design that is unmistakeably Cybertronian in origin!

Plus, the rise of the Swarm, and the beginning of the end...