I have just released the Fortress on the Wild Frontier campaign module which represents the first campaign my group played a couple of years ago as we were play-testing the HoA system. The module is clearly inspired by the 'Keep on the Borderlands' (the adventure which got me into D&D) and includes a wilderness fort, some adventure locations, settlements, NPCs and monsters.
The module is presented on the basis that you can pick and choose which elements you want to use but there are some suggested adventure plot lines you can follow if you would like some campaign ideas.
Thanks to my play testers and a handful of community members (Azaule, Greymark, Logen_Nein) who kindly helped review and proof read the book and helped polish it further.
The module has been written on a system neutral basis so it can be adapted for any system if you wish (the HoA stats are presented on the last couple of pages which can easily be swapped out with those of your own chosen system). The adventure can be downloaded for free here.
Thanks for checking it out, hope some people get some use from it.