Popsugar Parenting Calendars The Best Halloween Advent Calendars | 2020 Countdown to the Spookiest Day of the Year With These 31 Halloween Advent Calendars 4 September 2020 by Haley Lyndes View On One Page Photo 19 of 31 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 19 Witch Halloween Block Countdown Calendar The Witch Halloween Block Countdown Calendar ($13) is ready to cast a spell on your October. Witch Halloween Block Countdown Calendar $13 from amazon.com Buy Now Previous Next Start Slideshow ShoppingCalendarsHalloween DecorHalloween