If she were lost on a desert island without any way to tell the date she'd probably still start cackling like that when Halloween came around. For Wilfreda especially it's quite a useful power. I love how she starts her laughter so sweetly and her friends barely notice, but then it evolves into something deeper, more menacing, causing Betty and Milagros to grow so worried by the end. That final look on Wilfreda's face is fantastic.
Chillax, you still have two weeks to go.
Not enough time, in my opinion, 'cause I'm drawing something special for it, again. Stay tuuuuuuned...
Surprised she didn't realize it sooner.