El Filibusterismo is the sequel to Jose Rizal's Noli Me Tangere. Thirteen years after Crisostomo Ibarra's apparent death, a mysterious man named Simoun appears, quickly gaining favor with the Spanish rulers and high society of 19th century Manila. Called Cardinal Moreno (Dark Cardinal), he was the informal adviser to the colony's Captain-General and tours the islands apparently as a jewel merchant. Basilio, the young boy from the previous book, is now a medical student at the college of Ateneo, and he gets drawn into a web of lies and deceit.Like its predecessor, it is considered an important part of Filipino literature.
Author Filibuster: Several conversations in the book fall heavily into this. Two memorable examples are Isagani's conversation with the lawyer, Mr. Pasta, and a dinner that the students have later in the story to 'celebrate' the halt of their planned Spanish school.
Bolivian Army Ending: Basilio. It is unknown what happens to him after the wedding of Juanito and Paulita.
Book Ends: Father Florentino appears in the Bapor Tabo story arc (first three chapters) and in the final chapter (where his house is visited by Simoun and throws the jeweler's chest into the sea).
Break the Cutie: Juli, Basilio's girlfriend, is nearly raped (by the parish priest) and commits suicide. Basilio himself is too, after suffering setback after setback.
Chekhov's Gun: Remember when Maria Clara gave her necklace to the leper in the first book? One of the earlier chapters in this book reveal that the leper gave it to Basilio as thanks for treating his illness. Basilio then gave this to Juli as a present. Later on, her father, Cabesang Tales, uses this same necklace to pay Simoun for the revolver he took from him for his Roaring Rampage of Revenge.
Dean Bitterman: Father Hernando de la Sibyla, the Dominican curate of the town of Binondo in Noli, becomes the vice-rector of the University of Santo Tomas in the sequel. He then proceeds to make life hell for the students.
Nice Job Breaking It, Hero: When Basilio sees Isagani watching his beloved Paulita from a window at Capitan Tiago's house, he warns him to go away lest he be killed by an explosion (as part of Simoun's Batman Gambit). Because of this, Isagani is horrified by at the thought of seeing his beloved die right before his eyes that he came inside the house to take away the lamp and throw it into the water, thereby foiling Simoun's plan.
Scarpia Ultimatum / Sadistic Choice: Juli realizes that the only way to save Basilio from a lifetime of prison and/or forced slavery is to have sex with Father Camorra, although to be fair he doesn't tell her this herself. She tries, and is Driven to Suicide because of this.
Self-Made Orphan: Tano, Juli's brother. To be fair, he didn't know that the man he shot down was his own father.
Sequel Hook: A less-obvious one in current times, but the jewelry casket of the dead Simoun thrown by Padre Florentino into the sea will be a Chekhov's Gun in another novel by another author: Philippine National Artist Amado V. Hernandez's Mga Ibong Mandaragit (Birds of Prey).
Shoot the Shaggy Dog: Simoun returns to the Philippines just to have revenge against the Spaniards and save Maria Clara. However, Maria Clara dies before he could see her again and his planned revolution failed. Fortunately, he redeems himself in the eyes of Father Florentino.