The book describes the technological and, partly, the social history of hypothetical inhabitants of the depths of Europa, Jupiter’s moon. Centuries of another history appear before the reader’s eyes—from ancient times to the emergence of a technologically advanced civilization. The Europians face a main obstacle in understanding the surrounding world: an icy shell. But it turns out that breaking through a thick layer of ice can be easier than breaking through a layer of ignorance and indifference… : Boris Evgenievich Shtern is a scientist and journalist, a well-known Russian astrophysicist, Doctor of Sciences, leading researcher at the Laboratory for the Study of Rare Processes of the Department of Experimental Physics at the Institute of Nuclear Research of the Russian Academy of Sciences. One of the founders and the chief editor of the popular in the scientific community newspaper “Trinity Variant.” Organizer of the Scientific.ru portal, head of the project “Who’s Who in Russian Science,” and the initiator of creating a corps of independent scientific experts.