While sleeping, Mr. Eko is assigned by his brother Yemi (Adetokumboh McCormack) in a dream to go with John Locke to disclose the meaning of the "?" symbol. With the pretext of chasing Henry, Mr. Eko brings John with him and they find a second hatch called "Pearl" underground the question mark symbol marked on the field, where a video explains that the other hatch is a psychological experiment and people behavior pressing the buttons of the computer every 108 minutes are actually subjects. Meanwhile, Jack unsuccessfully tries to save Libby.<br /><br />In this episode, John Locke loses his faith in the island when he finds that they have been monitored in the hatch. The disgusting Michael sees the anguishing Libby wishing that she was dead, while Hurley, Jack, Kate and Sawyer are suffering her pain, in a deep emotional contrast. My vote is eight.<br /><br />Title (Brazil): Not Available