My second ever Hunter Shea read and one I much preferred over Tortures of the Damned, Swamp Monster Massacre is fast-paced and occasionally brutal (in an over-the-top, almost goofy kind of way). It delivers everything you would expect from a novella with such a title, as a bunch of people become caught-up in a criminal's attempt to evade his pursuers and are soon being stalked though the Florida everglades by the titular creatures.
Make no mistake, this is no Laird Barron or Greg F. Gifune read. In fact, Shea annoyingly switches between characters POVs within sections, sometimes after only giving them two or three paragraphs worth of attention. But if you're looking for a fun, gory read with a likable anti-hero, you could do far, far worse than Swamp Monster Massacre.
3.5 (Rounding up to 4) Ripped-Off Limbs for Swamp Monster Massacre.