It looks like Evaline Waters, a River Heights resident, is knee-deep in trouble. A huge corporation is suing her for her land: they want to tear down her house and put up a warehouse. And documentation of the zoning law that would protect Evaline's right to keep her land is missing.

Nancy is on a quest to find that document, but it's hard to focus on the land when she's cruising at ten thousand feet. She and Ned are taking flying lessons! It's a good thing Nancy's good at juggling more than two balls at once. Too bad she's not the only one...