<P> He then helps her escape her room a second time . In a hurry, Will finds a set of doors and they find themselves in a large cell with mutilated bodies and mechanical objects . After breaking down the doors, Mrs Black addresses Will as a Shadowhunter and a fight ensues with the arrival of an unnamed shadowhunter and another man called Henry, whom Tessa bites in self - defence . In the chaos, Mrs Black is beheaded and Mrs Dark, who is later revealed to be an Eidolon demon, flees . The room collapses and Tessa falls unconscious . </P> <P> Tessa wakes up in the Institute to find herself being examined by Brother Enoch, one of the Silent Brothers, who informs her that she is a shape - changer and a Downworlder . Tessa meets the inhabitants of the Institute . The next morning Jessamine takes Tessa shopping; Charlotte and Henry look for Tessa's brother; and Will and Jem inspect the Sister's house . They find a clockwork automaton wrapped in human flesh . A vampire called de Quincey is revealed to be The Magister . Later, another vampire, Camille Bellcourt, comes to the Institute and informs them all that de Quincey throws parties where he tortures and kills humans for entertainment; something which is breaking the Law . If the Shadowhunters can observe de Quincey breaking the Law at one of these parties, they can attack . Camille admits that her motives for coming forward was to meet Tessa; she has become very talked - about in Downworld, and reveals that Tessa's brother may be with de Quincey . Will and Tessa decide that the only way that they can attend the party without causing a stir is for Tessa to attend the party disguised as Camille, with Will posing as her human companion . Camille also says that her lover, the warlock Magnus Bane will attend the party with them for assistance . </P> <P> At the party, Magnus informs Will and Tessa about some plans for a demonic clockwork army found in the library, but they are forced to join the other vampires in another room before they can discuss the matter further . The room is set up to host one of de Quincey's' performances' but as the human is revealed to be Nate, Tessa blows her cover in an attempt to save her brother . Will summons the other Shadowhunters, who fight and kill the vampires . Will confronts de Quincey as he attacks Camille / Tessa, and bites him, mocking him and asking the vampire how it feels to be on the receiving end of one . Infuriated, De Quincey manages to escape, and Will accidentally consumes some of the vampire's blood because of the bite . They also save Nate and bring him back to the Institute . Back at the Institute, Will and Tessa share a passionate moment when she brings him holy water to drink to cleanse his body of the vampire blood, but he abruptly ends their kiss and sends her away . Unaware of these events, Jem cheers up Tessa and takes her to his favourite place in London, where they are attacked by members of the Magister's clockwork army . They make it to the Institute, but Jem collapses before he can open the door . Tessa manages to alert the Shadowhunters inside, but not before one of the clockwork figures smears its hand with the Jem's blood . The figure waves in a grotesque manner and retreats . </P> <P> Later, Tessa is summoned to Jem's room, and he explains why he collapsed earlier; when he was living in China, a greater demon broke into their home and tortured Jem in front of his parents as an act of revenge against his mother, who had raided the demon's nest and killed its babies . The demon tortured him by constantly feeding him a drug that caused him to hallucinate for days . He was found by some other Shadowhunters, but his parents had been killed . Jem admits that his body is now addicted to the drug and he has to take some of it every day, causing his skin, hair and eyes to pale to a silver colour, and without it his body cannot function . He did not take any when he was out with Tessa, which was why he collapsed . He also tells Tessa that the drug is killing him, but when Tessa asks him why he does not simply give up his dangerous profession, he declares that "there are more things to life than not dying". The following day, most of the Shadowhunters leave to kill de Quincy in his hideaway in Chelsea . Mortmain, the mundane who informed the Shadowhunters of de Quincey, comes back to the Institute to tell Will and Jem about the Dark sister who is trying to help the Magister with his army and her location . They rush off to kill her, leaving Nate, Jessamine and Tessa alone . Mortmain comes back with the clockwork army, using Jem's blood from the clockwork figure's hand to gain access, and reveals himself as the real Magister . Nate reveals himself as Mortmain's accomplice . While Thomas tries to fight the clockwork automatons off, Tessa, Sophie and later Jessamine escape to the Sanctuary, but Mortmain tricks Jessamine into opening the door . Tessa agrees to marry Mortmain to spare Sophie and Jessamine's lives . Mortmain, believing he has won, agrees, but once the army has left the room, Tessa stabs herself in the heart and falls into the fountain . </P>

When does will kiss tessa in clockwork angel
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