Taking place not too long after the episode "The Legend of Skull Duggery". I did mention that I would make some fan art based on another of my favorite episodes where a very evil, diabolical undead villain makes his first appearance and from what powers he possesses is enough to call him the Freddy Krueger of the Wild West to give anyone nightmares once setting eyes upon his skeletal appearance. While it may be a relief that Boothill and Saddlesore did make it out of Skull Mountain alive after that insane mine cart ride, the whole thing leaves Boothill paranoid that Skull Duggery is out there waiting every night for his next victim that he starts nailing every window shut, including the doors so the evil spirit can't get in or look inside, as he is able to get a good night sleep, or so he thinks. Nailing windows might keep out intruders, but it can't prevent dreams from becoming nightmares. Especially if those nightmares feel real enough to leave anyone screaming once they awake from it.