Battle For Rivertop

From publisher blurb: Adventure Framework 24 Battle For Rivertop consists of: A downloadable, bookmarked PDF (7 A4 pages, excluding cover & credits, in both parchment and white backgrounds). The Core Adventure (in this instance, a frontier outpost is attacked by beastmen, ogres and direwolves. Can the PCs repel the invasion and save Rivertop?), that will occupy 3-8 hours of session time with Minimal Prep. Rumours & Hooks suggestions.