Wild Margaret by Charles Garvice

Lottie Belvoir looked down at the prostrate figure of Margaret with a pallor that made the carefully-applied paint on her face look yellow by contrast.

For a minute or two she felt frightened and had an idea of calling for help. Lottie was not altogether a bad girl; indeed, the persons who are either altogether bad or altogether good do not exist in real life, but only in the pages of some novels.