Revolution is a young adult historical fiction novel by Jennifer Donnelly about a girl named Andi Alpers who is struggling with drugs, thoughts of suicide, and the way her family has fallen apart after the death of her ten-year-old brother.

When her father takes her with him to Paris on a business trip to ensure she works on her school thesis, Andi discovers a journal written by a girl her age, Alexandrine Paradis, two centuries earlier which has its own tragedies inside.

All the while, the music she plays on her guitar and the talks she and Virgil have keep her hoping for a better future, despite her fights with her father and her emotional distress over memories the diary evokes of her own brother.

After her frantic attempt to get up to the top of the Eiffel Tower to commit suicide, Virgil drags her with him down to a closed off part of the catacombs of Paris, where the bones of the thousands of dead were laid to rest centuries ago, to play at a party.

Her savior is the subject of her thesis, Malherbeau, and her confused babblings are attributed to the crack in the head she took while stumbling in the darkness of the catacombs, until she starts playing her guitar in public at the base of the tower for Louis-Charles to hear and is seriously heckled by those present.

Andi carries out the rest of Alex's mission, knowing that the heart in the jar that her father is testing is indeed Louis-Charles, and that he will die in just a few nights.