Effie Kolb was the right-hand woman, chief supporter, and main witch of Watkins. Effie is the first witch Tom Ferrell ever met, having taught Tom about the pleasures of female companionship along with tricking him into forming a pact with her master Witkins, whose sorcery maintains her youthful appearance. When Tom returns to Virginia in 1958, Effie taunts him, revealing that she turned his elderly father into a horse with a magic bridle, then rode him until he died of exhaustion. During the standoff between Witkins and Tom at the old church in "The Hurricane", Effie dances seductively among Wikins's minions, inviting Tom to embrace the dark side, and her, once again. After Witkins is finally destroyed, Tom and Hellboy find Effie skulking outside his mansion, her body now reflecting its true age. Feeble and helpless, she pleads for mercy, but receives little from Tom, who forces the magic bridle into her mouth, turning her into a nag. To add insult to injury, Hellboy paints a warning on Effie's side to keep people away from her, thus ensuring that the bridle will never be removed, and she will spend the rest of her known life as a nag.