The Dark Artifices · Book 4

Secrets of Blackthorn Hall

by Cassandra Clare

Published
17 March 2026
Pages
320
ISBN-13
9781837841196
Type
companion

Buy on AmazonAll The Dark Artifices books in order

About this book

Secrets of Blackthorn Hall (March 2026, Daphne Press, 320 pages) is an illustrated, epistolary Shadowhunters story -- told through letters, diary entries and texts -- following Emma Carstairs and Julian Blackthorn as the Clave orders them to restore the crumbling Blackthorn Hall in Chiswick, London, or lose it, only to find a spectral presence already sharing the house. Illustrated by Cassandra Jean, it bridges the timeline between The Dark Artifices trilogy and the forthcoming Wicked Powers series, arriving after Queen of Air and Darkness as the most recent Dark Artifices-connected entry.

Its place in The Dark Artifices

Secrets of Blackthorn Hall is book 4 in the The Dark Artifices series. It follows Queen of Air and Darkness. See the full The Dark Artifices reading order.

Five years after the events of City of Heavenly Fire, Emma Carstairs is a Shadowhunter in Los Angeles still hunting her parents' killers, bound by an unbreakable parabatai oath to Julian Blackthorn -- a bond that makes the romantic feelings growing between them not just complicated but explicitly forbidden by Shadowhunter law. When a new string of murders echoes the pattern that killed Emma's parents, she and Julian's investigation drags the Los Angeles Institute into a conspiracy involving the Faerie courts and…

Editions