Marisol is spending the night alone while Maggie and Mel are out when a strange force comes to the house in pilot episode. The sisters debate what to do about the presence in the Ouija board while avoiding summoning Harry who they are not sure they can trust in episode 1x02 "Let This Mother Out". Maggie goes overboard with her new glamour spell in hosting the halloween party for her sorority in episode 1x03 "Sweet Tooth".
Source: Paolabsyou — Twitter via What's Filming