Best friends Nancy, Bess, and George choose ice cream as the subject of their group project, and when the best parlor in town starts serving yucky flavors, the young sleuth decides to save the day--and her grade.

שם הספר
The clue in the crumbling wall - NANCY DREW MYSTERY STORIES #
Secrets can kill - 1 ; THE NANCY DREW FILES #
Deadly intent - 2 ; THE NANCY DREW FILES #
Murder on ice - 3 ; THE NANCY DREW FILES #
Smile and say murder - 4 ; THE NANCY DREW FILES #