On SD 49911.15, the Manticore was sent to find out why the Ceti Alpha V outpost had stopped transmitting. It arrived to find no planet, just an orbital belt of planet-sized debris. We encountered a huge disk-shaped object there and it fired on Manticore, nearly destroying us. Our last hope was to use a transverse gamma sine wave pulse from the main deflector dish and this succeeded in knocking the disk out of the sky and it crashed down onto Ceti Alpha VI.