I participated in the Storytelling Collective write a Call of Cthulhu PDF adventure for July for the Miskatonic Repository on drivethrurpg. Michigan Mythos: Fall Colors (https://www.drivethrurpg.com/product/366703/Michigan-Mythos-Fall-Colors) is a 5000 word Pulp Cthulhu adventure set in Michigan's Ludington State Park in 1935.
It was a lot of work. But I learned a lot. Word can be stretched into doing more than I thought it could. And there are a lot of resources out there for publishing writers. Harder than just writing a Word doc for four cents a word and the pay will likely be less. But I'm glad I did the work and got it done.