Unfortunately, this was not the end of Valhalla's troubles. The comet strike had been a catastrophe, but was not to be the end of the Valhallan people's suffering. Not long after the comet strike, a damaged Ork warfleet descended on the planet and proceeded to fight the Valhallans for every gram of the precious food they had stored. The Valhallans held out bravely for a long time in their vast hive cities beneath the ice but were ultimately pushed right back to the food vats. Eventually they destroyed the Orks by using ice-boring machines to strategically strike at the heart of the mob, burning and melting most of the Orks and scattering the rest. Even this Greenskin invasion proved unable to blunt the Valhallans' indomitable spirit. Their grim refusal to surrender, despite overwhelming op