Mithras had been set up as a penal colony - no one would have gone to such a frozen hell voluntarily. Even five generations later, no inhabitant could escape from Mithras alive. And now, Howell discovered to his horror, the Confederation Colonial Service was using it as a dumping ground for its own troublemakers. He was marooned on Mithras - its new commandant, yet as much a prisoner as any convict. And to add to his tribulations, the entire colony was being terrorized by a fourteen year old girl.
Used availability for Kathleen Sky's Ice Prison
August 1976 : UK Mass Market Paperback