A vast archive in the Badlands that safeguarded a culture's treasures and the final piece of the Progenitors' map.
The Eternal Gallery and Archive lies in the Badlands, and in Erigah Discovery's engineers determine that the next clue points there. In Labyrinths, the archivist Hy'Rell leads Michael Burnham to a manuscript said to hold the last map piece, while Cleveland Booker receives a cutting of the World Root of his lost homeworld.
Burnham passes an AI's test in a mindscape while Book and Rayner fight off Breen forces. She trades the completed map to Primarch Ruhn for a promise to spare the Archive, but Ruhn decides to destroy it anyway.