At Hog Wallow Middle School, May Ellen Bird was always slightly invisible. Then she went on a long trip to the land of the dead, where ghost towns glowed blue in the dark dusk and spooky specters dwelled in cities on the Dead Sea. Back on Earth at last, May and her hairless cat, Somber Kitty, are now famous, their faces plastered across souvenirs and sportswear that read "e;May Bird Went to th...