Hunter's Keep

"A hump of dark rock swathed in mist, like a hundred other Unterzee islands. But here's a grand house, windows aglow. Lawns, impossibly green and lush in the false-star light. Raked gravel paths. You stand on the dock as the sea nudges the ship's sides. An unexpectedly warm breeze carries the faintest trace of lavender."

Hunter's Keep is the smallest island (or one of the smallest in the Southern Archipelago. It is inhabited by three young ladies - musical Phoebe, extroverted Lucy, and dramatic Cynthia - who live in a single cottage and each have their own sad past. In-game, you can visit it while exploring the Unterzee.