Star Trek The Next Generation #24: Nightshade

After two hundred years of civil war the planet Oriana is dying. Most of the surface vegetation is gone, the air is nearlyy unbreathable, and the people themselves are dying. Now, the two warring factions have finally sat down to talk peace, and Captian Picard and the U.S.S. Enterprise™ are sent ot help them negotiate a settlement.
Picard, Lt. Worf, and Counsellor Troi beam down to Oriana, just as the Starship Enterprise is called away on another urgent mission. Alone on the planet, the U....