Ethereals are Exiles that form the basis of alien encounters in the Matrix. They take the form of aliens, possessing green skin and having the power to become invisible and intangible. They dwell underground and abduct bluepills in order to conduct experiments on them that vary depending on what they are doing and the results they aim to achieve. A few of them serve as bosses in particular Constructs or Exile hideouts.
Al3xandra was said to have been abducted by them at one stage whilst she was a bluepill, and was said to have had nightmares about it.
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