Fleck Blackstar and the rabbits he has under his command sail across Ayman Lake to mine coal in the future establishment of Kingston, which was at that point, nonexistent.
When they are attacked for the first time by the Lords of Prey, they start to attempt to flee back across it to the safety of Seddleton.
The Birds overtake them, however, and they are forced to fight a battle now known as the Battle of Ayman Lake. The rabbits won in the end, but at a great cost to themselves.
Ayman Lake is mentioned by King Whitson Mariner as he recalls all that he and his subjects have been through in the past.