Therefore, when Mortmain sends some yin fen and says that he will send more in exchange for Tessa, Tessa agrees. For this reason, Will and Tessa go to visit the wizard, Magnus Bane, in hopes that he might have some clue as to where they might find a cure, or at least more yin fen.Īs Jem’s illness worsens, Tessa begins to fear he will die before they can marry. Jem tells Will that he can try to find a cure. Will goes to buy some more, but discovers someone has bought up all the yin fen in London. Everyone, Will especially, are shocked to discover that Jem has been using his medication, the yin fen that he is both addicted to and which is the cause of his inevitable death, in large doses and is nearly out. When the battle is over, and Gabriel has killed his father, Jem collapses. As things resolve, Tessa joins Henry in Benedict’s study where they find writing on the wall that refers to the Infernal Devices, automatons used by Mortmain. As Will and the others fight the worm, Tessa takes charge of the Lightwoods’ sister. Tessa goes with Gideon and Gabriel Lightwood, Will Herondale, his sister Cicely, and her fiancé Jem Carstairs to Lightwood House. Will informs everyone that Benedict Lightwood has been suffering from the demon pox and the worm is the type of demon he has become.

Tessa is trying on her wedding dress when Gabriel Lightwood arrives at the London Institute and announces his father has turned into a worm. Clockwork Princess is an exciting ending to the trilogy that completes Ms. Unfortunately, the wedding is permanently delayed when Tessa is kidnapped by her arch nemesis, Mortmain, and Jem makes the difficult choice to become a Silent Brother to save his life. Jem’s illness flares up after a battle with a demon, causing them to move up the wedding date. In this novel, Tessa is engaged to marry Jem.

Clockwork Princess is the third novel in The Infernal Devices Series by Cassandra Clare.

Clockwork princess book