A large-eyed little girl cowers on the ground. She's whimpering as you stand over her, deciding whether to rescue her, or to harvest the precious genetic material she possesses for your own ends.
You have the words of two people ringing in your ears. Atlas, the pragmatic Irishman who has been giving you advice by radio since you entered the undersea hell of Rapture, says she is no longer a human and therefore no longer deserving of pity: what she has will save you. Dr Tanenbaum, apparently the creator of this strange little girl, and others like her, says the opposite, and that if you save her you'll be rewarded in time. Trouble is, you have no idea what motivates either of them and therefore who to believe.