Angel had followed Nari into the building a few minutes after they had entered as she had stayed in the humvee, walking in, "N..Nari?", she said shakily as she kept walking into the building, looking at the charred books on the ground.
As she continued into the building, trying to find Nari and the others, but stopped as she heard the shuffling of feet and weighted breaths, she squinted down an isle and a feral ghoul lept at her , pinning her down as she pushed up, managing to keep it off her, smacking most of its swinging hands from her, all while screaming for Nari.
Angel's hand scraped across the ground as she grabbed a rusty pike and swung it up into the ghoul's head, killing it to then push it off her. Angel had seen things before but had never killed anything, and this was scary and new to her.
Following her fight she curled up into a ball, not wanting to move from her spot, however her sobbing from being scared subtly echoed through the library to the others.
As she cried, her emotions would be felt in full to others who were mentally vulnerable.