Reading order
The Mortal Instruments reading order
- City of Bones2007
- City of Ashes2008
- City of Glass2009
- City of Fallen Angels2011
- City of Lost Souls2012
- City of Heavenly Fire2014
- 6 volumes
- Volumes
- 2007–2014
- Published
- about 60 h
- Reading time
- Completed
- Status
- Romance#23
- Genre
Quick answer

Publication order
6 volumes2007–2014Completed
- Six volumes in order, from City of Bones.
- The Infernal Devices is a Victorian prequel — read before the series it spoils several reveals, so take it after book three or after all six.
A plan for the whole series
6 volumes, 3,282 pages, about 60 hours. At 45 min a day that is about 3 months.
Share of volume 1’s readers who reach the last volume. Chance of reaching the last volume: low
- From volume 2 on, the number of ratings falls most before volume 4, “City of Fallen Angels” (by 30%). Plan your break after volume 3, before the series plans it for you.
- Readers scored volume 4, “City of Fallen Angels”, below its predecessor (7.6 after 8.0). If you slow down there, that is on the book, not on you. From volume 6 the form returns.
Stages
4 stages, with 3 short books from outside the series between them. You finish around February 4, 2027, 17 days later than in one go.
- Stage 19 h13 daysby November 11, 2026
- Short breakThe Fire Next Time · James Baldwin · 120 pp. · score 8.8
- Stage 220 habout 4 weeksby December 11, 2026
- BreakMaus · Art Spiegelman · 295 pp. · score 9.0
- Stage 319 habout 4 weeksby January 14, 2027
- Short breakOn Tyranny: Twenty Lessons from the Twentieth Century · Timothy Snyder · 128 pp. · score 8.4
- Stage 412 h16 daysby February 4, 2027
- The end of the series
We count 1.1 min per page, the pace of an average novel reader. Faster? Move the slider.
Does the series hold up
Shape of the series: the finale is the best part. The last volume (8.2) stands above the rest. Whoever reaches the end gets the reward.
Best volume: City of Heavenly Fire (8.2, 534 ratings). Weakest: City of Bones (7.3). From volume 2 on, the biggest drop in the number of ratings is between volume 3 and 4: 30%. The series is complete; you can read it start to finish with no waiting. The last volume (8.2) scores close to the series average or above it.
How this plan is calculated
The plan comes from the pages and ratings of each volume: we split the series into stages of about three weeks’ reading, size each break to the stage before it, and read the chance of finishing from how many readers rate the last volume compared with the first. How we work out the plan →
Every volume in order
Order checked by hand · Order and years: Wikidata (CC0). Spotted an error? Tell us. · Data updated October 29, 2026
The Mortal Instruments books ranked, best to worst
- 1.City of Heavenly FireBook 6 · 20148.2
- 2.City of GlassBook 3 · 20098.0
- 3.City of Lost SoulsBook 5 · 20127.8
- 4.City of AshesBook 2 · 20087.6
- 4.City of Fallen AngelsBook 4 · 20117.6
- 6.City of BonesBook 1 · 20077.3
Frequently asked questions
Which Mortal Instruments book is the best?
By reader score, City of Heavenly Fire (8.2/10). The lowest-rated is City of Bones (7.3/10).
Which The Mortal Instruments book is the longest?
“City of Heavenly Fire” is the longest at 672 pages; the shortest is “City of Fallen Angels” with 434 pages.
What should I read after The Mortal Instruments?
Other series by Cassandra Clare: The Infernal Devices, The Dark Artifices, The Last Hours.








