Katorga

Humanity reached for distant stars, built new worlds, and all but forgot its cradle. Then Earth was attacked by aliens. Poisoned, scarred, and no longer fit for normal life, the old homeworld now interests its grateful descendants only when they need somewhere to dispose of those who no longer have a place in the human ecumene. Old Earth became the perfect prison. A world no one is supposed to escape. Katorga on a galactic scale.

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