Inspired by this post.
One thing that's been missing from this blog has been adventure ideas. I put so many of them into the book itself that it felt like a pretty dry well. For the most part, I tried to avoid suggesting re-treading existing stories in order to emphasize the idea of making Oz your own.
But there is some mileage to be gained from going back to the classics. Just like Rosencrantz and Guildenstern are Dead provides some interesting insights into Hamlet, running an adventure that runs alongside an existing story can be fun.
For example, in The Lost Princess of Oz, four search parties set out to find Ozma, but we only see what happens to two of those search parties. What did the other parties encounter? What adventures did they have? The Magic of Oz is the story of how Trot and Dorothy got presents for Ozma's birthday. But what about some of the other gifts that Ozma received? What are the stories behind them?
And if you're ever stuck for a plot, just recycle an old one. Baum did it all the time. Ozma of Oz went on stage as The Tiktok Man of Oz and then came back to the novel series as Tik-Tok of Oz. Scarecrow of Oz runs Trot and Cap'n Bill through His Majesty the Scarecrow of Oz