Hi there! I'm about to update the description on these PDFs but the short answer is: These three "issues" of Dungeon Critters are the shorts that we did in 2016-2017, before we got picked up to do a full book with First Second. We ended up using a lot of story elements from these shorts in the book proper. At the moment there is no proper sequel to 2020 book, Dungeon Critters. I can refund your purchase if you'd like, sorry about the confusion!