When the barrier broke, it almost felt like everything leading up to it was just a dream. Maybe they grew complacent, or maybe Chrom was just exhausted from constantly being browbeat into a corner. There was a morbid sense of relief in the fact that he knew this enemy, he knew the way they looked, how they moved, how to fight them. When the skies grew dark again, when their happy little barrier was broken, at least this time, they had the numbers to hold. But it also meant something horrible had happened, something that was far worse than Ganondorf and Medusa could ever be, in Chrom's opinion.
They were out in the open now, Medusa knew where they were at...and yet there was no divine retribution happening. No mass army forming, because there were undead. Lots of them, so many angry souls from the shifting of the planet, mashed together to form this new world. It could only be Grima. Which in of itself was a problem, but one that they couldn't deal with right now. Chrom rubbed his chin thoughtfully, peering out the window of their home in thought. Tellius had become the home away from home, for many...Hylian culture was starting to thrive again, lives were almost normal. And then this, beyond everything else.
Was Grima working alone? Did he escape? There were so many questions that they'd likely never get the answers for, but that didn't stop Chrom from practically burning a hole in the window thinking about it.