Chamber

Chamber was the original containment unit for the Reality Stone, known as the Aether.

History
The large structure that contained the Aether, the Chamber was used by the Dark Elves to contain the power of the Aether. During the Convergence, Malekith attempted to consume the Aether to plunge the Nine Realms into darkness. However, the Asgardians intervened and invaded their homeplanet, Svartalfheim. Eventually, the Dark Elves were defeated and the Aether was taken by the Asgardians, and it was King Bor who ordered the ancient weapon to be hidden somewhere it would not be discovered.

Thousands of years later, however, the Convergence began once again, and Jane Foster, a scientist who along with a few colleagues, were investigating scientific anomalies at a warehouse in London, was swallowed into a portal, which sent her to another planet, from which the Aether was hidden. As she explored the cave, she discovered the Chamber containing the Aether. When she attempted to touch it, the force infested with her own body, and the Chamber was closed.