Aunt Jen, the official White House hostess, is being thrown a surprise party with a Wizard of Oz theme, but when a box arrives from the Smithsonian, the slippers that Judy Garland wore in the movie aren't in it! Never fear, First Kids Cammie and Tess are on the case. White House dog Hooligan finds one slipper, but no one knows where or how. A surprising revelation reveals the thief's identity. Filled with humor and White House inside information, this third First Kids Mystery is exciting from start to finish.