You won’t be far from the collapsing tunnel before a flaming Bouncer is thrown through the window in your direction. This could only mean one thing—there’s a Little Sister nearby and she’s no longer protected! Approach the door to the Lounge and watch as Tenenbaum tries to defend the Little Sister from a Thuggish Splicer in search of some Adam. She won’t shoot you, thankfully, because she at least has some respect for the non-Splicers still left in Rapture. But Tenenbaum pleads with you not to hurt the Little Sister. Meanwhile, Atlas is whispering a very different tune in your other ear. The choice is yours.
Make your decision regarding the Little Sister, then cross the Lounge to the north and use the Adam you just acquired to purchase upgrades from the Gatherer’s Garden vending machine. You may want to purchase the Armored Shell, Health Upgrade, and EVE Link power-ups.