Sometimes when she stood at the open window leaning against the casement and looking down into the paved court below, she would feel an overmastering impulse to throw herself down, merely to do it. But in that very second she seemed to have actually made the leap in her imagination and to have felt the cool, incisive tingling that accompanies a jump from a height. She darted back from the window to the inmost corner of the room, shaking with horror, the image of herself lying in her own blood on the hard stones so vivid in her mind that she had to go back to the window again and look down in order to drive it away.