The Last of the Veimurians

Charlo is a member of the hostile alien race called the Veimurians. They vacated their dying world, Oanus, which was destroyed by radiation and acid rain, and is being sucked up by the black hole its imploding star created. Their mission? Destroy any and all life they come upon to ensure the survival of their species, through the use of harnessed chemicals to simulate the same rains that destroyed their own planet. Charlo begins to feel remorse for other races, specifically humans of Earth, and takes a course of action all of her race that remain, with the aid of others from the planet Zorus and their space fleet. She plans to destroy her own race in order to save billions of others in the future. The only question is, can she do it?