title: The Clue of the Tapping Heels (Nancy Drew, Book 16)
author:  Carolyn Keene 
description: Carolyn Keene is a pen name used by a variety of authors for the classic Nancy Drew Mystery series. The first author to use the pseudonym was Mildred Wirt Benson, who wrote 23 of the original 30 books. Other writers who have adapted the "Carolyn Keene" moniker include Leslie McFarlane, James Duncan Lawrence, Walter Karig, and Nancy Axelrod.
zlib_text: CHAPTER I
  Tap Code
  TAP! TAP! TAP!
  “Nancy,” said blond, pretty Bess Marvin, “that doesn’t sound like a regular
  tap dance.”
  “It certainly doesn‘t,” added George Fayne, a dark-haired, athletic girl, who
  was Bess’s cousin. “I could almost imagine it’s a code.”
  “And you’d be right,” Nancy Drew replied with a broad grin.
  The slender, titian-haired tap dancer stood in the center of the Drews’
  basement recreation room. Her audience, besides Bess and George, was
  Mrs. Hannah Gruen, the kindly housekeeper. She had helped to rear Nancy
  since the death of Mrs. Drew when Nancy was three years old.
  Mrs. Gruen said, “Nancy, why don’t you tell the girls about your new
  mystery? After all they’ve been invited to help solve it.”
  “Another mystery?” Bess spoke up. “What’s this one?”
  1
  “It involves a strange tapper,” Nancy replied as she dropped into a chair.
  “Hannah has a friend named Mrs. Bealing. She’s a practical nurse. Recently
  she was called on a case over in Berryville to take care of a Miss Carter
  wh