Cover of City of Glass

Young adult · Urban fantasy

City of Glass

4.0 out of 5, from 984 ratings from Hardcover readers

The third Mortal Instruments book takes Clary and her friends to the Shadowhunters' hidden homeland, where Valentine's army is preparing a decisive strike.

Facts last checked 2026-10-17

First published
2009
Pace
Fast
Length
Long
Pages
541
Format
Book 3 of 6 in The Mortal Instruments

Read this if you are already following the Mortal Instruments series.

Skip this if you are new to the series, as it depends on the earlier books.

The feel

Content warnings

  • Violence
  • Death

Also reported by Hardcover readers:

  • Child death
  • Death of parent
  • Genocide
  • Xenophobia
  • Confinement
  • Kidnapping
  • Grief
  • Murder

Quick answers about City of Glass

What is City of Glass about?
The third Mortal Instruments book takes Clary and her friends to the Shadowhunters' hidden homeland, where Valentine's army is preparing a decisive strike.
Who should read City of Glass?
Read it if you are already following the Mortal Instruments series. Skip it if you are new to the series, as it depends on the earlier books.
How long and how fast is City of Glass?
It is a fast-paced, long read of about 541 pages, first published in 2009.
Does City of Glass have content warnings?
Content we flag: Violence, Death.
Can I borrow City of Glass for free?
Often, yes. Check Libby (OverDrive) to see whether your library lends City of Glass; the borrow button above searches it for you.

Where to get it

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Young adult

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