conversations.from: human
conversations.value: Provide a plot for a book about Clary, Endarkened, Magnus entitled City of Heavenly Fire.
conversations.from: assistant
conversations.value: City of Heavenly Fire: Shadowhunters of the Los Angeles Institute meet to discuss about the army of Endarkened Shadowhunters when the army, led by Sebastian Morgenstern, ambush the Institute, endarken some shadowhunters, and kidnap Mark Blackthorn, leaving Mark's five half-siblings and Emma Carstairs to escape to Alicante.\nMaryse Lightwood announces to the New York Institute that an emergency meeting is due in Alicante to discuss the attack on five Institutes around the world.\nClary Fray reluctantly leaves Simon Lewis to be guarded by Maia Roberts and Jordan Kyle for his safety.\nHowever, Simon is kidnapped by Maureen Brown and her vampire aides to be her groom, but Raphael Santiago frees and helps him to come to Alicante.\nPraetor Lupus, the brotherhood of werewolves, is soon attacked by the Endarkened with Jordan and Praetor Scott among the casualties, resulting in Bat Velasquez and Rufus Hastings battling for praetor position.\nThe vacuum of power is finally ended when Maia kills Rufus, becoming the new praetor, and also tricks Maureen into drinking holy water so the latter's aide, Lily, can usurp her to become the leader of the vampire clan.\nAt Alicante, Emma and Julian Blackthorn are interrogated using the Mortal Sword, Clary comforting the former when she breaks in tears.\nChoosing to accept her Morgenstern heritage, Clary claims Heosphoros, the twin of Sebastian's Phaesphoros, as her sword.\nThe Seelie Queen, now allied with Sebastian, sends Meliorn to ask the Downworlder Representatives (Jocelyn Fray, Luke Garroway, Magnus Bane, and Raphael) to join them; when they refuse, he brings them to Edom, the realm of demons.\nJace Herondale is injured during the ensuing conflict and burns Brother Zachariah back into his Shadowhunter persona.\nAn Endarkened soon gives an ultimatum for the Clave to hand over Clary and Jace.\nClary, Jace, Simon, and Isabelle and Alec Lightwood, force the Seelie Queen to send them to Edom.\nConfronting Sebastian, Clary pretends to agree to rule by his side, but then stabs him with Heosphoros, reverting him back momentarily to the brother she could have, Jonathan Morgenstern, who destroys the Infernal Cup before he dies, killing the Endarkened, including Luke's sister, Amatis.\nTo escape Edom, Magnus summons his father, Asmodeus, who offers a way out in exchange for Magnus' immortality and life.\nSimon offers a lighter option: his immortality and memories of the Shadow World.\nThe Clave punishes the faeries and sends Emma to live with the Blackthorns.\nAlec and Magnus reconcile and get back together.\nMeanwhile, Clary scatters Jonathan's ashes in Lake Lyn and mourns for Simon.\nSeveral months later, Jocelyn and Luke hold their wedding, attended by numerous Shadowhunters and Downworlders alike.\nSimon has remembered bits of the Shadow World as well as his relationship with Isabelle.\nAttending the wedding is also Tessa Gray and Jem Carstairs (Brother Zachariah), who formally introduces herself to Clary.