Rockfort

From publisher blurb:

Rockfort is a 5e supplement which aims to help you save prep time and impress your players.

This product offers you a ready-to-use location, which you can drop in any setting, along with detailed encounters that can become an daventure. All of this supported by maps, to complement your game without the need to prepare.

Here's a summary of what you get in this product:

24-pages PDF gorgeously laid out with amazing artwork
1 location with lore
4 detailed encounters that can become an adventure (4-6h of gameplay)
3 new stat block
1 custom artwork
4 battlemaps with ~50 versions (night, rain, etc)
1 regional map