If you're searching for your next young adult fantasy obsession filled with forbidden romance, demon-slaying action, and a richly imagined supernatural world, The Mortal Instruments series by Cassandra Clare deserves a place at the top of your reading list. This iconic urban fantasy series has captivated millions of readers worldwide and spawned an entire expanded universe known as The Shadowhunter Chronicles.
What is The Mortal Instruments About?
Set in modern-day New York City, The Mortal Instruments follows Clary Fray, a seemingly ordinary teenager whose life is turned upside down when she discovers she can see things others cannot. After witnessing a murder at a nightclub committed by tattooed teenagers wielding strange weapons, Clary is thrust into the hidden world of the Shadowhunters; half-angel warriors known as Nephilim who protect humanity from demons.
When Clary's mother is kidnapped and dangerous secrets about her family begin to unravel, she must navigate a supernatural underworld populated by vampires, werewolves, warlocks, and faeries. Alongside the infuriatingly charming Shadowhunter Jace Wayland and his fellow demon hunters at the New York Institute, Clary embarks on a journey that will test everything she thought she knew about herself and the world around her.
The Mortal Instruments Books in Order
The series comprises six books, originally conceived as a trilogy before Clare expanded it into two interconnected trilogies. Here's a spoiler-free overview of each book to help you decide where to begin your Shadowhunter journey.
City of Bones (2007)
The story begins when fifteen-year-old Clary Fray witnesses what appears to be a murder at the Pandemonium nightclub, only to watch the victim vanish into thin air. This chance encounter introduces her to Jace and the world of the Shadowhunters. When her mother disappears and a demon attacks her home, Clary must embrace a destiny she never knew existed. The first instalment establishes the intricate world-building, introduces a memorable cast of characters, and ends with a twist that will leave you desperate for the next book.
City of Ashes (2008)
With her mother in an enchanted sleep and her world irrevocably changed, Clary continues her training whilst dealing with devastating revelations about her family. Someone is hunting Downworlder children, and tensions between the supernatural factions threaten to erupt into open conflict. The stakes rise considerably as Clary and her allies race against time to stop an enemy who seems to be always one step ahead. This book deepens the relationships between characters whilst ramping up the action and danger.
City of Glass (2009)
The original trilogy reaches its climax as Clary and her companions travel to Alicante, the glittering capital city of the Shadowhunters in the hidden country of Idris. With war looming and alliances fracturing, our heroes must confront their greatest challenges yet. Secrets are revealed, loyalties are tested, and the fate of both the Shadowhunter and Downworlder worlds hangs in the balance. This book delivers an emotionally satisfying conclusion to the first arc whilst setting the stage for what's to come.
City of Fallen Angels (2011)
Peace has returned following the events of City of Glass, and Clary is finally free to pursue her relationship with Jace whilst training to become a full Shadowhunter. But someone is murdering former Circle members, and Jace is plagued by disturbing nightmares. Meanwhile, Clary's best friend Simon struggles with the complications of his new existence as a vampire. Dark forces are stirring once again, and not everyone will emerge unscathed. This book shifts focus to explore Simon's perspective more deeply and introduces new threats.
City of Lost Souls (2012)
A devastating magical connection forces Clary to make impossible choices as she discovers Jace has been bound to her brother Sebastian in a way that makes harming one fatal to the other. Whilst her friends scramble to find a solution, Clary takes matters into her own hands with a dangerous gambit that takes her deep into enemy territory. The penultimate book in the series explores themes of sacrifice, trust, and how far one will go for love.
City of Heavenly Fire (2014)
The epic conclusion brings all the threads together as Sebastian's army of corrupted Shadowhunters threatens to destroy everything. With nowhere left to hide and conventional weapons useless against this new enemy, Clary and her friends must venture into the demon realms themselves; a place no Shadowhunter has ever returned from. Lives will be lost, sacrifices made, and the world forever changed in this action-packed finale that also introduces characters from Clare's spin-off series, The Dark Artifices.
Key Themes and Tropes
The Mortal Instruments delivers on several beloved fantasy romance tropes that will appeal to fans of the genre:
Forbidden love and star-crossed romance
Enemies to lovers tension and slow-burn relationships
Found family dynamics amongst the Institute residents
Hidden magical world existing alongside mundane reality
Strong female protagonist who discovers hidden powers
Morally complex villains with personal connections to the heroes
LGBTQ+ representation through several prominent relationships
Love triangles and complicated romantic entanglements
Chosen one narrative with unique abilities
Good versus evil battles with the fate of the world at stake
Who Would Love This Series?
The Mortal Instruments is perfect for readers who enjoy:
Young adult paranormal romance with supernatural creatures and intense romantic tension
Urban fantasy settings where magic exists hidden within modern cities
Action-packed adventure with demon-fighting, magical weapons, and epic battles
Complex found family dynamics and sibling relationships
Witty banter and sarcastic humour between characters
Slow-burn romance that builds across multiple books
Morally grey characters and villains you'll love to hate
Diverse supernatural creatures including vampires, werewolves, warlocks, and faeries
Series with expanded universes offering more content in the same world
Books similar to Twilight, Vampire Academy, or The Vampire Diaries
Fantasy romance with strong world-building and intricate lore
BookTok and Booktube favourites that have stood the test of time
Should You Read The Mortal Instruments?
If you're a fan of paranormal romance, supernatural YA fiction, or urban fantasy with a romantic subplot, The Mortal Instruments offers everything you could want. Clare's sharp dialogue, memorable characters, and intricate plotting have made this series a cornerstone of the young adult fantasy genre for nearly two decades.
The series works wonderfully as a standalone experience, but it also serves as the gateway to the broader Shadowhunter Chronicles, which includes prequel series set in Victorian London (The Infernal Devices) and sequel series continuing the story (The Dark Artifices). For readers who fall in love with this world, there's an abundance of additional content to explore.
Whether you're discovering it for the first time or considering a reread, The Mortal Instruments remains a compelling choice for fans of supernatural romance and fantasy adventure.
Reading Guide Quick Reference
Book | Year | Pages (approx.) |
|---|---|---|
City of Bones | 2007 | 485 |
City of Ashes | 2008 | 453 |
City of Glass | 2009 | 541 |
City of Fallen Angels | 2011 | 424 |
City of Lost Souls | 2012 | 534 |
City of Heavenly Fire | 2014 | 725 |
Series Genre: Young Adult Urban Fantasy, Paranormal Romance
Age Rating: 14+ (contains violence, romantic content, and mature themes)
Adaptations: Film (2013), Television series Shadowhunters (2016-2019)
Books Featured in This Article
City of Bones
by Cassandra Clare
Discover the world of the Shadowhunters in the first installment of the internationally bestselling Mortal Instruments series and “prepare to be hooked” (Entertainment Weekly)—now with a gorgeous new cover, a map, a new foreword, and exclusive bonus content! City of Bones is a Shadowhunters novel.When fifteen-year-old Clary Fray heads out to the Pandemonium Club in New York City, she hardly expects to witness a murder—much less a murder committed by three teenagers covered with strange tattoos and brandishing bizarre weapons. And she’s more than a little startled when the body disappears into thin air. Soon Clary is introduced to the world of the Shadowhunters, a secret cadre of warriors dedicated to driving demons out of our world and back to their own. And Clary is introduced with a vengeance, when her mother disappears and Clary herself is almost killed by a grotesque monster. How could a mere human survive such an attack and kill a demon? The Shadowhunters would like to know…
City of Ashes
by Cassandra Clare
Is love worth betraying everything? Plunge into the second adventure in the internationally bestselling Mortal Instruments series and “prepare to be hooked” (Entertainment Weekly)—now with a gorgeous new cover, a map, a new foreword, and exclusive bonus content! City of Ashes is a Shadowhunters novel.Clary Fray just wishes that her life would go back to normal. But what’s normal when you’re a demon-slaying Shadowhunter, your mother is in a magically induced coma, and you can suddenly see Downworlders like werewolves, vampires, and faeries? If Clary left the world of the Shadowhunters behind, it would mean more time with her best friend, Simon, who’s becoming more than a friend. But the Shadowhunting world isn’t ready to let her go—especially her handsome, infuriating, newfound brother, Jace. And Clary’s only chance to help her mother is to track down rogue Shadowhunter Valentine, who is probably insane, certainly evil—and also her father. To complicate matters, someone in New York City is murdering Downworlder children. Is Valentine behind the killings—and if he is, what is he trying to do? When the second of the Mortal Instruments, the Soul-Sword, is stolen, the terrifying Inquisitor arrives to investigate and zooms right in on Jace. How can Clary stop Valentine if Jace is willing to betray everything he believes in to help their father? In this breathtaking sequel to City of Bones, Cassandra Clare lures readers back into the dark grip of New York City’s Downworld, where love is never safe and power becomes the deadliest temptation.
City of Glass
by Cassandra Clare
Love is a mortal sin, and the secrets of the past are deadly. Plunge into the third installment novel in the internationally bestselling Mortal Instruments series and “prepare to be hooked” (Entertainment Weekly)—now with a gorgeous new cover, a map, a new foreword, and exclusive bonus content! City of Glass is a Shadowhunters novel.To save her mother’s life, Clary must travel to the City of Glass, the ancestral home of the Shadowhunters—never mind that entering the city without permission is against the Law, and breaking the Law could mean death. To make things worse, she learns that Jace does not want her there, and Simon has been thrown in prison by the Shadowhunters, who are deeply suspicious of a vampire who can withstand sunlight. As Clary uncovers more about her family’s past, she finds an ally in mysterious Shadowhunter Sebastian. With Valentine mustering the full force of his power to destroy all Shadowhunters forever, their only chance to defeat him is to fight alongside their eternal enemies. But can Downworlders and Shadowhunters put aside their hatred to work together? While Jace realizes exactly how much he’s willing to risk for Clary, can she harness her newfound powers to help save the Glass City—whatever the cost?
City of Fallen Angels
by Cassandra Clare
Trust is dangerous, and to love is to destroy. Plunge into the fourth installment in the internationally bestselling Mortal Instruments series and “prepare to be hooked” (Entertainment Weekly)—now with a gorgeous new cover, a map, a new foreword, and exclusive bonus content! City of Fallen Angels is a Shadowhunters novel.The Mortal War is over, and sixteen-year-old Clary Fray is back home in New York, excited about all the possibilities before her. She’s training to become a Shadowhunter and to use her unique power. Her mother is getting married to the love of her life. Downworlders and Shadowhunters are at peace at last. And—most importantly of all—she can finally call Jace her boyfriend. But nothing comes without a price. Someone is murdering Shadowhunters, provoking tensions between Downworlders and Shadowhunters that could lead to a second, bloody war. Clary’s best friend, Simon, can’t help her—his mother just found out that he’s a vampire, and now he’s homeless. When Jace begins to pull away from her without explaining why, Clary is forced to delve into the heart of a mystery whose solution reveals her worst nightmare: she herself has set in motion a terrible chain of events that could lead to her losing everything she loves. Even Jace. The stakes are higher than ever in the #1 New York Times bestselling fourth installment of the Mortal Instruments series.
City of Lost Souls
by Cassandra Clare
What price is too high to pay, even for love? Plunge into fifth installment in the internationally bestselling Mortal Instruments series and “prepare to be hooked” (Entertainment Weekly)—now with a gorgeous new cover, a map, a new foreword, and exclusive bonus content! City of Lost Souls is a Shadowhunters novel.When Jace and Clary meet again, Clary is horrified to discover that the demon Lilith’s magic has bound her beloved Jace together with her evil brother Sebastian, and that Jace has become a servant of evil. The Clave is out to destroy Sebastian, but there is no way to harm one boy without destroying the other. As Alec, Magnus, Simon, and Isabelle wheedle and bargain with Seelies, demons, and the merciless Iron Sisters to try to save Jace, Clary plays a dangerous game of her own. The price of losing is not just her own life, but Jace’s soul. She’s willing to do anything for Jace, but can she still trust him? Or is he truly lost? Love. Blood. Betrayal. Revenge. Darkness threatens to claim the Shadowhunters in the harrowing fifth book of the Mortal Instruments series.
City of Heavenly Fire
by Cassandra Clare
Shadowhunters and demons square off for the final showdown in the spellbinding, seductive conclusion to the #1 New York Times bestselling Mortal Instruments series—now with a gorgeous new cover, a map, a new foreword, and exclusive bonus content! City of Heavenly Fire is a Shadowhunters novel.Darkness has descended on the Shadowhunter world. Chaos and destruction overwhelm the Nephilim as Clary, Jace, Simon, and their friends band together to fight the greatest evil they have ever faced: Clary’s own brother. Sebastian Morgenstern is on the move, systematically turning Shadowhunter against Shadowhunter. Bearing the Infernal Cup, he transforms Shadowhunters into creatures of nightmare, tearing apart families and lovers as the ranks of his Endarkened army swell. Nothing in this world can defeat Sebastian—but if they journey to the realm of demons, they just might have a chance… Lives will be lost, love sacrificed, and the whole world will change. Who will survive the explosive sixth and final installment of the Mortal Instruments series?