That was kinda careless of Luck to let her wander of like that in torn clothes. She is bound to be mistaken as some homeless theif or a burglar.
Atleast take her with you a few times to check if she has some trouble on her or keep an eye on her from a far.
I mean, he knew she was hiding in the sewers when he last found her, that should give him some idea for the situation she might be in.