KWAN

Kwan sat grinding a medicinal combination for one of her patients sick with a fever. Many would have thought her so engrossed in her task that she might not even notice the rumble of thunder. Those people would have been so wrong for she was a Mistress of Qi and holder of Guǐ Jiàn "the Ghost Sword"
She felt a strange presence in the air, an evil and deadly presence. She ceased her task and seemed to flow upwards like a column of smoke. She stepped into her courtyard seemingly oblivious to that which hid in the shadows, night lurkers.
These strange creatures rushed her seeking to get past her and at the weak an infirm that lay within her hospital.
Her sword Guǐ Jiàn appeared like magic in her hand as she began he elegant an dangerous dance. She and her sword spun in a glittering circle that when in bisected the form of a lurker split the creature in twain.
She was a whirlwind of death and completed her art without a sound other than the grunts an screams of the dying lurkers mingling with the cutting sound of her blade.
Once all the vile creatures were dead she stopped moving an allowed her Qi to expand outward seeking any others nearby. She was mildly shocked when her ability to sense spirits encountered a multitude in the city. 
Tonight it seemed that death had come to rule like a plague. She thought of moving outward to save the city but she was bound by the safety of her patients.
Knowing she must do something she barred her hospital's door and began circling it's precincts. Where ever she encountered Lurkers she dispatched them with speed and skill leaving their bodies as warning to the brethren where they fell.