The City in the Middle of the Night: Charlie Jane Anders

My son read this book first. He liked it, with reservations. (More about that later.) The subject interested me, so I decided to read it also. It is science fiction, about life on a colonized planet, where half of the planet is perpetually cold and in the dark, and the other half is always in the light and hot. This summary is from the back of the edition I read:Humanity clings to life on January–a colonized planet divided between permanently frozen darkness on one side, and blazing endless sunshine on the other.Two cities, built long ago in the meager temperate zone, serve as the last bastions of civilization–but life inside them is just as dangerous as the uninhabitable wastelands outside.Sophie, a young student from the wrong side of Xiosphant city, is exiled into the dark after being part of a failed revolution. But she survives–with the help of a mysterious savior from beneath the ice.The story takes place thousands of years in the future. The planet of January was populated by…