the unpredictable action took us both by surprise and distracted the maniac for long enough to someone i knew to come inside the room through the door , crouch by my side , run , step on a chair and then a table , kick it rather than merely jump , propel herself like a falling star and reach the killer with the speed of lightning and an unidentified object in her left hand that made my gaze go to the floor searching for the knife i dropped .