The Scarecrow's Brane

Oz isn't what Commander Lisa Chang expected. Fairy tales were never her thing, and finding herself in one is grating on her nerves. But she can't leave, at least not yet. The abrupt landing of her spaceship inadvertently squashed the only protection Emerald City had against the tyrannical Red Witch of the South. And now, unfortunately, the witch has Lisa and her crew locked in a cell. Emerald City isn't enough.
The witch wants Lisa's 'magic' ship as well. The crew of the spaceship Brane Child must escape the witch's prison and then embark on a hazardous journey through the Wild Lands to Munchkinland, where Lisa must somehow convince the Great and Powerful Blue Wizards of the East to construct a new protector for Emerald City.