Marlys Millhiser
Marlys Joy Millhiser was an American author of mysteries and horror novels, including her most famous one The [Mirror (novel)|The Mirror], published in 1978. She was also the author of The Threshold, Michael's Wife, Nella Waits, and Willing Hostage.
Millhiser originally worked as a high school teacher, and was regional vice president of the Mystery [Writers of America]. She lived in Boulder, Colorado. She died on April 20, 2017.