The author might have skipped over years in these chapters
because nothing of significance to the development of the central plot happened during
these times.
In Chapter 21, the first six years of Lucie's
marriage to Charles Darnay are briefly recounted. These are years of peace and
tranquility for the couple; they live "a life of quiet bliss." A child is born to them,
and though another does not survive, they are comforted by the knowledge that he is with
God. Although these years of quiet prosperity and domesticity are overshadowed by the
ominous echo of something bad to come, nothing shocking actually happens during this
time, and so the author skips quickly over these
years.
Three years pass between Chapters 23 and 24. Chapter
23 ends with France in turmoil, but things seem to improve somewhat by the time Chapter
24 begins with events occurring three years later. In the intervening years, not much
happens of significance to the plot as conditions in France calm down, so again, the
author is able to pass over those years while providing little detail as to what
transpired.
The author's method of moving quickly through
these passages of time allows him to advance the central plot without bogging down the
reader with insignificant details. The narrative, set in real history, covers a large
chronological period, and by focusing only on events that are important to his story, he
is able to cover a great many years while sustaining an atmosphere of continuity and
suspense.