The mystery of the 99 steps
1966,
Book
, 176 pages :
1
hold /
14 copies
139279
Summary/Review:
"Despite warnings from a stranger, Nancy, Bess, and George travel to France to search for a flight of 99 steps to solve the mystery of a friend's strange dream. During her search, she must contend with the sinister Monsieur Neuf and help her father uncover who is frightening a wealthy financier into selling large amounts of securities."