The Tentacled Invasion by Max Gunssler
This is more about the quality of the files received than the story. No version of this has a cover image. Both the epub and mobi files are very lazy conversions of the pdf version which is the only one close to readable no reflow no chapter breaks, alignment issues, incorrect or missing meta data, pdf page numbers hardcoded so appear mid way through pages. This is just very poor. I have no idea about the story because I won't be reading it in this state and if the author cares so little about the presentation of their book that they give this to people who pay then I'll likely not bother with this or any of their other work. I'll update this review if the files ever get edited.