Darkest London - there is just something about the city that makes it perfect background to go spooky. Also shout out to Set in New England square (the American version of Darkest London).
All the Witch squares - Spellbound (2018), Witches (2016 & 2017).
Diverse Authors & Terrifying Women - kicks me out of my comfort zone and makes me try new authors outside the ones always mentioned in book lists and blogs.
Black Cats - my favorite Halloween symbol. Leos recognizes domestic Leos.
Read by Candlelight/Flashlight - because you can choose whatever book and just do the task. It broke up the process of reading strictly for the square. Also the pictures posted were great.
Murder Most Foul/Cozy Mystery - easiest to knock out.