The official order of the books in the series has yet to be finalized, thus the unspecified, tentative page name.[1][2][3][4][5]
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Chain of Thorns

Cassandra Clare

Release Date est. 2021[6]

Walker Books

The Last Hours
 1  2  3
Preceded by
Chain of Iron
Followed by
The Mortal Instruments
(City of Bones)
Release order
Released after
The Black Volume of the Dead
Released before
The Wicked Powers

The third and final installment of the upcoming The Last Hours trilogy by Cassandra Clare is currently set to be Chain of Thorns.[5]


  1. First announcementCassandra Clare on Tumblr
  2. Book order — Cassandra Clare on Tumblr
  3. Titles, but not which is 1, 2 or 3 — Cassandra Clare on Tumblr
  4. The Last Hours on
  5. 5.0 5.1 Likely order — Cassandra Clare on Twitter
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