ny infamous pirates sailed the black flag on the seas of the North Carolina. Edward Teach aka Blackbeard, Stede Bonnet and William Kidd. Even the scurvy ladies of Mary Read and Anne Bonny.
Which made the old NC coastline the right topography for a pirate novel set there. The proper amount of sepia to make the map appear old and the right font against the grid set everything right.
There were a few attempts to add a compass or other flourish but the cleaner cover won out.