"Chapter 6: Monument Tower"—Booker has arrived at Monument Island, the location for the enormous angel statue that is seen in the sky. This is where the girl he's been tasked to retrieve resides. Inside, he finds all manner of experiments that have been constructed to study the girl, who we find is named Elizabeth. Seems she possesses some sort of power whereby she can access other dimensions. Whomever has been studying her finds her to be dangerous, and as Booker makes an awkward introduction, Elizabeth's protector, a behemoth referenced as the Songbird, crashes in to prevent her escape. A high-speed chase ensues. Booker finds mission-critical items and collectibles in the following order: Voxophone (13/80): Tiger by the Tail (Inside one of the lockers.) I guess even in a restricted area, these crackers need someone to clean the floors, hm? Hmph. Those politicians and scientists don't bother 'bout what they say 'round me, because I'm some half-lettered colored boy. But I can tell they scared out of their wits by that thing they got locked upstairs, yessir. They got a tiger by the tail, and they don't know whether to hang on... or run. Infusion (10/30) (Under blackboard in sound room.) Voxophone (14/80): A Reward, Deferred (Under blackboard.) It's one thing to imagine one's future... and another to see it. I have seen the seeds of fire that will prepare the Sodom below for the coming of the Lord. But Elizabeth shall sow those seeds, not I. I will fall before the job is done. But she shall take up my mantle. The Lord is calling me home. I feel His love in every tumor, because they are the train which takes me to His station. And I go with joy, knowing that Elizabeth will take my earthly place. But the False Shepherd is coming to lead my Lamb astray. I will not board that train until she is safe from his deceptions. Voxophone (15/80): To: R. Thompson RE: Fuses (In left-side room with the chamber and chair.) Uh, Mr. Thompson, sir. I replaced the entire fuse bank as asked, and the lights were all in working order last night—last night... There they go again. We go through boxes of fuses every day as of late, just in the Siphon alone. I don't... Oh! Oh, something's happening! What—[Screams] Specimen Observation: Voxophone (16/80): The Source of Her Power (On a chair in the last observation room.) What makes the girl different? I suspect it has less to do with what she is, and rather with what she is not. A small part of her remains from where she came. It would seem the universe does not like its peas mixed with its porridge.