I guess it was their world spell because I just checked and I can now enter their borders, though I still can't see the actual landmass.

As long as I'm here though liberation is a bit annoying: the svartalfar with FoL founder just finished it and my hell terrain mainland is now getting a thorough coating of ice...

Perhaps even more dire, is how I now have the Spyro the dragon "fire and ice" commercial stuck in my head.
What happened to "You are about to damage another civ's units. This is considered an act of war, continue?". Did it die out in the trans between ffh2 and RiFE or what? Because I just cast maelstrom and hit a hidden civ's unit I'm allied with...