The Clue of the Tapping Heels
Challenging questions confront Nancy when she attempts to solve the mystery of the strange tapping sounds in the house of a retired actress.
Who is the tapper?
How does he gain access to the house, despite securely locked doors and windows?
Why do the tapping sounds come in Morse code?
Is there a sinister motive behind the prowler’s actions?
While trying to learn the answers to these and other puzzling questions, Nancy finds her investigations complicated by the dishonest administrator of a will and by a thief who steals the actress’s prize-winning Persian cats.