After spending some time healing up, the characters started to question the spirit of the former Town Marshall, learning that Joe's father was the person in town who was most involved with conjuring spirits but little else. After deciding to go out to Joe's farm, they were distracted by a disturbance at the blacksmith's down the street. Arriving and asking for information from the Deputy Marshalls there, they learned that the blacksmith had been disemboweled and ritualistically mutilated.
Finally getting out to Joe's farm, the characters found themselves walking into a siege. Quickly dispatching four of the ranch hands, they got into Joe's house and assessed the situation, determining that at least ten more ranch hands had surrounded the house. At this point, we ran out of time.
I like sword & sorcery fiction. A lot of the early works drew on the occult history outlined by Madame Blavatsky's Theosophy movement. This is especially true of the proto-sword & sorcery fiction of Edgar Rice Burroughs. The correspondences between the races and structures of Barsoom and the speculations of Theosophy are complete. H.P. Lovecraft derived many of the concepts of his weird fiction from the same source, and Robert E. Howard—arguably the originator of sword & sorcery—drew on the material both directly and through adopting ideas from Lovecraft.
This is great, except for the fact that the occult history of Theosophy is also intensely, deeply racist. That the authors in question also had such ideas didn't make anything better.
I do think that drawing on occult histories as a basis for sword & sorcery fiction is a great idea, but unfortunately the Theosophical one cast a long shadow over the twentieth century and even into the present one. However, there has been a recent attempt to move away from the methods and ideas of Theosophy in crafting a new occult history.
Occult histories are a useful technique that are intended to assist creative approaches to data by creating a structure at odds with the accepted ideas. By creating an approving context for concepts that are disapproved by the intellectual authorities of our society, they allow for questioning of things that are conventionally accepted. Whether this is a good idea or not is up to you, but I think that it's at the very least useful for creative works.
As it happens, there is a recent attempt to forge a new occult history that draws on both cutting edge and fringe archaeology instead of the fringe Indology that informs the Theosophical one. A "chaos magician" named Gordon White recently published a few works, among them Star.Ships. Despite the title, the book explicitly disclaims the idea that extraterrestrial aliens had anything to do with our world. Instead, it lays out an argument that world history and prehistory is better explained from an animist perspective than a materialist one, and offers a history that incorporates everything from the "impossible" mesolithic site of Göbekli Tepe through Gunung Padang, strange anomalies about the Pyramids of Giza to the weirdly specific coincidences of astronomical mythology around the world—such as why just about everyone from Europe and Asia through to North and South America associates Sirius with canines—and more. Recently, a find of petroglyphs in India that seem related in style to other petroglyph finds, and which date to the appropriate era, seem to provide further support for the idea. Whether a stepped pyramid identified in China bears any relation remains to be seen, though the dating makes it seem unlikely.
Players and readers don't seem to get very excited about Stone Age cultures, though, so I think that it would be worthwhile to suppose that the Bronze Age got a very early start in Sundaland. Like Howard's Hyboria, this allows for city-states and armies at a time when, as far as we know, they were not particularly likely in the real-world prehistory. Since some people connect the idea of Sundaland with Plato's story of Atlantis—among other things, the dates happen to match up, where other theories of Atlantis require assuming that the dates were wrong in some way—we can equate orichalcum "mountain copper" with bronze, which seems to be the trend today anyway.
Anyway, a lot of details still to work out, but it seems like it should be an interesting sword & sorcery setting. With ancient serpent people and the occasional Pleistocene—or even earlier—monster, along with the Flores Island "hobbits", there is plenty of room for the kind of weird adventure that makes for a rolicking story.