Silver Swarms is the 16th province (Stage 1 Province 16) of the Oceanic Future, accessible after taking control of Walled Gulf to the south. Taking over Lower Grotto and Silver Swarms unlocks Rocky Domain.
If previous sectors acquired by negotiation:
That was quite the scare, but the water seems calmer now. Beautiful, even.
If at least one sector taken by force:
That was pretty scary, but we're ready for another! Don't you think so?
How can you think you can defeat us when an earthquake couldn't?