The Pill sisters, Amy and Victoria, live on the ruined Earth of the future and use their genius intellects to try and save what's left of the world from disasters. The all-ages sci-fi series from jeff Rider and Sean Dillon.
Victoria Pill, Amy's sister, has moved off planet to the city-ship Persephonis to become a micro-black hole energy researcher. But when the ship's experimental power source calls forth dangers from the other side of the universe, and this time it's up to Victoria to save her sister and her city!