Chain of Thorns

Cassandra Clare

Release Date March 2022[1][2]

Walker Books

The Last Hours
 1  2  3
Preceded by
Chain of Iron
Followed by
The Mortal Instruments (CoB) /
The Bane Chronicles (RotHD)
Release order
Released after
Chain of Iron
Released before
The Wicked Powers

Chain of Thorns[1] is the upcoming third and final installment in The Last Hours trilogy by Cassandra Clare.



  • The book will take place about a week after the events of Chain of Iron.[3]
  • Some key word clues Cassie has given on the book are: "Paris, kidnapping, Cornwall, a party where a terrible thing happens, death, inventions, science, secrets revealed, a new Shadowhunter arrives in London."[4]
  • The reason why Lucie flinched while practicing Cordelia and hers parabatai ritual will be revealed.[5]
  • There will be an unexpected romantic scene.[5]

Special content

  • Cassie plans on the special content for this book to be the story of the found family tree with explanations as to why it is incorrect and what the true family tree is.[6]


Cassandra Clare's Shadowhunter Chronicles
The Mortal Instruments
City of Bones City of Ashes City of Glass
City of Fallen Angels City of Lost Souls City of Heavenly Fire
The Infernal Devices The Dark Artifices
Clockwork Angel Lady Midnight
Clockwork Prince Lord of Shadows
Clockwork Princess Queen of Air and Darkness
The Last Hours The Eldest Curses
Chain of Gold The Red Scrolls of Magic
Chain of Iron The Lost Book of the White
Chain of Thorns The Black Volume of the Dead
The Bane Chronicles
What Really Happened in Peru Saving Raphael Santiago
The Runaway Queen The Fall of the Hotel Dumort
Vampires, Scones, and Edmund Herondale What to Buy the Shadowhunter...
The Midnight Heir The Last Stand of the New York Institute
The Rise of the Hotel Dumort The Course of True Love (And First Dates)
The Voicemail of Magnus Bane
Tales from the Shadowhunter Academy
Welcome to Shadowhunter Academy Pale Kings and Princes
The Lost Herondale Bitter of Tongue
The Whitechapel Fiend The Fiery Trial
Nothing but Shadows Born to Endless Night
The Evil We Love Angels Twice Descending
Ghosts of the Shadow Market
Son of the Dawn The Wicked Ones
Cast Long Shadows The Land I Lost
Every Exquisite Thing Through Blood, Through Fire
Learn About Loss The Lost World
A Deeper Love Forever Fallen
The Wicked Powers
Companion books
The Shadowhunter's Codex
An Illustrated History of Notable Shadowhunters & Denizens of Downworld
A Long Conversation
The Official Mortal Instruments Coloring Book
Classics Reimagined in the World of the Shadowhunters
City of Bones: The Graphic Novel
The Mortal Instruments graphic novels
The Infernal Devices: Manga Series
The Mortal Instruments: City of Bones
Shadowhunters: The Mortal Instruments
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