She got her feet set firmly on the floor, and was about to run toward the window, when Slade leaped at her, seeing the reckless design in her eyes.
She had been moving when Slade leaped, and she evaded the arm he extended and slipped away from him.

She heard Slade curse.

She was almost at the window when he rushed at her again; and to keep him from grasping her she dodged, bringing up against the farther wall, while Slade, losing his balance, plunged against the window, crashing against the glass and sending a thousand broken fragments tinkling on the floor of the room and into the darkness outside.
She was alert to the advantage that had suddenly come to her, and she ran lightly to the door and tried to lift the bar.

She got one end of it from a socket, but the other stuck.

She pulled frantically at it.