As Earth's dying sun pushes humanity toward extinction, archivist Andrew Garfield leads an expedition into the ancient megastructure known as the Aethelgard-an archive preserving the knowledge of millions of lost civilizations. To earn access to technology capable of saving humanity, Andrew must prove that mankind has learned from its failures, sacrificing pieces of his own identity in the process. Blending hard science fiction, cosmic mystery, and profound themes of memory, truth, and redemption, The Black Sun Archive is an epic journey about what a civilization must become to inherit the future.