And so I don't come off as mean, here's mine.
Zeb in Oz Zeb Hugson returns to Oz.
The Apocalypse of Oz (Maybe the title is a little extreme.) When magic stops working in Oz, it is up to the Wizard, Dorothy, Betsy Bobbin, Trot, Cap'n Bill, and Button-Bright to find out what's going on, how to stop it, and restore magic back to Oz.
The Lonesome Zoop of Oz The Lonesome Zoop (from the Oz Film Manufacturing Company) makes his debut in the Oz series. (Why do I get the feeling someone already did that?)
The Fountain of Youth in Oz/The Magic Fountain of Oz (I went with the first, more unwieldly title, because the second one could easily refer to the Fountain of Oblivion.) Using some of my previous story ideas, Zeb returns to Oz as an elderly man. He later finds the Fountain of Youth, guarded by the Lonesome Zoop, who imprisons him. Woot the Wanderer and Ugu the dove befriend Zeb in prison, while Button-Bright, the Shaggy Man, the engaged couple Jeeseva and Danx (also from the Oz Film Manufacturing Company's films), and Jinjur's son Perry set out to find the Fountain and set the prisoners free. The story would explain why people in Oz stay young or feel younger: there's something in the water. I got pretty far into it, then I tried to write in Captain Fyter and the whole thing got bogged down. (Oddly enough, the unfinished draft ends with them finding Captain Fyter in a swamp, so when I say "bog," I mean "bog.")
Nonestica: The Story of Oz From The Beginning I actually finished the first draft of this one! In a mythology that wound up resembling The Silmarillion (which I never finished reading), the creation of Oz, the surrounding countries, and even Sky Island is explained. The origins of the Nome King, the Wicked Witches, Ozma, Mombi, Queen Zixi of Ix, and Queen Coo-ee-oh and the Adepts are revealed. In the end, I decided it was not an entertaining story. When I later ran into someone else who had a similar idea using Nonestica as a series title, I was happy to let him have it.