The Emerald City of Oz [The Wizard of Oz series #6]

Uncle Henry can't pay the mortgage, so he, Aunt Em and Dorothy must leave their Kansas home. Where can they go? To the Land of Oz, of course! Dorothy and the Wizard take Em and Henry on a grand tour, discovering knowledge pills and living paper dolls, solving living puzzles, suffering abuse from living kitchen utensils and drooling over living baked goods - but will anyone in Oz be left living after the Nomes attack, allied with the highly disagreeable Growleywogs? And when General Guph persuades the most evil race alive - the shape-shift ing Phanfasms of Mt.
Phantastico-to join the Nome Army, have the Nomes bitt en off more than they can chew?