"This free downloadable expansion pack lets the player visit various parts of the D'ni cavern, driven by the story's major dramatic question: "What happened to the DRC and its Restoration?" Through a series of challenges that send the player searching the island of Ae'gura (including its museum and library) and two D'ni neighborhoods, the player accesses three sections of the D'ni Great Zero. Finally, the player succeeds where the Restoration failed by powering up the Great Zero, and in doing so, discovers the answer to the question that's driven him."