Having previously appeared on Bewitched as an incompetent "mortal" maid, Alice Ghostley returns to the series in the semi-regular role of Esmerelda, a timid witch hired as the Stephenses' housekeeper by Samantha's mother, Endora. Though Esmerelda is likable enough, she has two curious and troublesome habits: She fades from view whenever she's nervous, and she causes misfire magic to happen whenever she sneezes. Inevitably, Sam and Darrin are forced to cover Esmerelda's tracks when she accidentally conjures up a unicorn. Written by Ed Jurist, "Samantha's Yoo Hoo Maid" first aired on September 25, 1969. ~ Hal Erickson, Rovi