Niasi 1 is a deceptive planet. Scans from orbit indicate that it is oddly low-mass, and its surface is bare of any atmosphere. Its crust is ravaged and baked by solar radiation, so close to its sun. Most would look at it and decide it is hardly worth mining, let alone colonizing, compared to its siblings. But those who find a way beneath the surface find a surprise: a verdant forest of alien flora whose atmosphere is friendly to humans.