S1E18 - The Playthings of Shadows
Arkham has somehow managed to pull them back in, and this day that means more than any other. See, in the Call of Cthulhu world, it's finally Halloween. Pranks, mischief, spooks, treats, and tricks all await the Infiniteers on this festive occasion. Will they be able to handle it all, or will the lurking insanity that's been just out of sight this whole time finally catch up with them? I just don't know. Well, okay I do. But that would be telling.