A huge cosmic cloud is reported moving into the outer fringe of the galaxy. Starfleet Command sends the Enterprise to investigate. Sensors indicate it is a strange combination of Matter & Energy. It seems to engulf and feed on the energy of planets. It makes a deliberate course change to head towards the populated planet of Mantilles indicating that it could be intelligent. Kirk sees it as a threat to every planet in the galaxy and if they can't communicate with it and make it stop it will have to be destroyed. Written by
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This takes place in 2269. See more
Jim, if we don't self-destruct now, all those people will die!