Under a warehouse near the fisherfolk dock is a natural cavern that has been settled by a set of Earthkine from the shadow caverns. Within this sunless area, these Earthkine have established a garden for fungi, mosses, and albino goats.
The cavern has become known as the Black Garden. The Sunless Earthkine have been slowly expanding the area underground, finding other caverns and seeding them with fungi, though the ones closer to the sea have been a challenge to find strains of fungi that thrive near salt water.
Sea of Stars RPG Design Journal 