I think this passage is where I initially became concerned . Cel scaled along the black walls of the East building looking for an entryway . More of her body armour had fallen away now , as her body warmed itself in the intense exercise , leaving her in only a very nubile white jumpsuit and her boots . Her body was heavier this way but she found the extra mobility to be more valuable . It certainly did help her swing her skinny frame in through a broken window , her wings now detached and in their portable form . She would have difficulty reattaching them later if she needed to , but she wasn ' t counting on it . She quickly drew her pistol from her belt and scanned the room . It was empty . The room was small , evidently a bedroom , Cel thought , as she stood up from behind a king sized bed . The room was pleasantly cool and the air tasted fresh , somehow even more so than the air outside . Air conditioning . A twinkle of light from the bedside cabinet caught Cel ' s eye . It was a glass of water , ice still in it , unmelted . Someone had been here , very recently . She took off her headphones and paced slowly , quietly across the room , her pistol drawn and at eye level . She stopped next to the door , flat against the wall as she silently twisted the knob and pulled it open just a crack . Nothing . She headed down the corridor and up the stairs , towards the roof , moving quickly now , but still quiet as a mouse , enjoying the benefits of her lighter choice of attire . Upon reaching the last flight of stairs , she approached the entrance to the roof in the same cautious manner as before , peaking through the slightest crack in the door , before slowly opening it wider , the barrel of her gun peaking around the side . She confirmed that this side of the roof was safe and stepped out into the hot sun , closing the door gently behind her . She heard talking from the other side , a low voice , slightly shaky .