I've been GMing for many years, at this point, and I've yet to really create my own adventure. The one that was most "mine," was created by tearing apart the Tempest Feud module from D20 and replacing the story and a bunch of the connective tissue.
I'm currently trying to come up with something basic. My players are just about to finish the Dead in the Water adventure and I was thinking it would be interesting if they were then tasked with finding another source of droids. Now, let me be super clear , I'm not looking for suggestions on how to build that adventure. If you want to post some of that, that's fine, but please understand that this is not the point of the thread.
What I'm more interested in is how would you go about creating this as a fleshed out adventure? Something with multiple stages, interesting challenges and twists. Something that isn't just, "We found a place with droids. Go in there and get them." Or even if it was just that, how to do it so that the infiltration and extraction was interesting. Basically, how do you go from nothing to something entertaining?
Any links to articles would be hugely useful. Thanks.