#2: The Hidden Staircase; revised ed. and compare

The revised edition of The Hidden Staircase is almost completely different from the original. Characters from The Secret of the Old Clock do not appear, and the elderly ladies from the original editions are now Helen Corning's aunt and the aunt's mother. These women are more well-composed in this edition, and plan activities to cheer Nancy up as she waits for news of her father. Nancy visits the mansion (now called Twin Elms), but somewhat more "campy" events (such as a scary owl appearing in a room at night) happen, and the "ghost" is not Mr. Gombet (now Nathan Gomber ), but a man named Willie Wharton, who is loosely connected with both the railroad property case and is the "ghost"--working in cahoots with Mr. Gomber. Mr. Gomber doesn't have a servant who helps him with his wily ways, but works with tow other men.

• Nancy and her father are are on a stroll, and are almost run over by a truck, which had been deliberately pushed down a hill so that it rolled at  high speed. They had to jump into the nearby river to get out of the way.