The Mortal Instruments Books in Order: Best Reading Order, Publication Order, and Timeline Placement

The right reading order for *The Mortal Instruments* depends on whether you mean only the six core novels or the much larger Shadowhunter universe that grew around them. Cassandra Clare’s original *Mortal Instruments* line is straightforward on its own: six books published between 2007 and 2014. The complication comes from the fact that those books now sit inside the broader *Shadowhunter Chronicles*, alongside *The Infernal Devices*, *The Dark Artifices*, *The Last Hours*, *The Eldest Curses*, *The Bane Chronicles*, *Tales from the Shadowhunter Academy*, and more. New readers often look at that shelf and assume they need a master chart before they can begin. They do not. If your goal is to read *The Mortal Instruments* itself, there is a simple answer. If your goal is to place it properly inside the wider chronology, there is a slightly longer one.

The short answer: read the six novels in publication order

For readers focused on *The Mortal Instruments* as a series, the best order is the publication order of the six main books:

• *City of Bones* (2007)
• *City of Ashes* (2008)
• *City of Glass* (2009)
• *City of Fallen Angels* (2011)
• *City of Lost Souls* (2012)
• *City of Heavenly Fire* (2014)

That is the cleanest path because the series was originally built to unfold that way. The first three books form one major arc, and the next three deepen and complicate the world after that initial climax. Even though the first trilogy can feel like a natural stopping point, the six-book structure is now the standard complete form of *The Mortal Instruments*.

Why publication order is still best

Cassandra Clare herself identifies the six-book sequence as the *Mortal Instruments* series, and the order matters because the books are paced around revelation. Family history, bloodline confusion, forbidden attraction, Downworld politics, demon threats, and shifting alliances all unfold through controlled timing. Starting elsewhere in the Shadowhunter universe can absolutely be rewarding, but it changes the experience.

The first three books are especially dependent on uncertainty. Clary begins as an outsider to the Shadow World. The reader learns with her. Jace’s identity, Valentine’s plans, Simon’s evolution, and the significance of the Mortal Instruments all gain force because they are not yet contextualized by dozens of related books.

That is why publication order wins for new readers. It protects discovery.

The six books and what each one does

City of Bones

This is the gateway novel. Clary Fray sees a murder no ordinary human should be able to see, discovers that her mother has hidden the truth about her heritage, and is pulled into the world of Shadowhunters, demons, runes, and Downworld factions. The book’s job is to establish wonder, danger, and attraction while launching the central mystery around Valentine and the Mortal Cup.

City of Ashes

The second book darkens everything. The war feels closer, Simon’s transformation changes the emotional map of the story, and Clary and Jace are forced deeper into the consequences of what the first novel revealed. This is where the series proves it is not just urban fantasy wallpaper with romance on top.

City of Glass

This volume completes the original opening arc and takes the action to Idris, the Shadowhunters’ homeland. It expands the mythology significantly and gives many readers the first real sense of how large Clare’s world can become.

City of Fallen Angels

After the apparent closure of the first arc, the fourth book changes the atmosphere. It opens the second half of the series, shifts some emotional balances, and makes room for consequences that the earlier books only set in motion.

City of Lost Souls

This is one of the more psychologically loaded entries in the sequence because loyalties become unstable and the line between rescue, obsession, and corruption grows thinner. It deepens the larger conflict without simply repeating the first trilogy’s pattern.

City of Heavenly Fire

The sixth novel functions as a true large-scale conclusion for the *Mortal Instruments* cast while also bridging toward the wider Shadowhunter universe. It is both finale and threshold.

Do you need to split the series into two trilogies?

In practical terms, yes, it can help to think of the books as two linked arcs: books one through three and books four through six. But that should not become an excuse to stop halfway unless you genuinely want only the first major conflict. The latter half is not a random extension. It develops characters who would otherwise remain incomplete and expands the moral and mythic range of the series.

The first arc introduces the world and resolves a central threat. The second arc shows what happens when a hidden world remains unstable even after its first visible enemy is confronted.

Timeline placement inside the wider Shadowhunter universe

This is where things become more complicated. Within the broader chronology of the *Shadowhunter Chronicles*, *The Mortal Instruments* is not the earliest story. *The Infernal Devices* takes place earlier historically, in Victorian London. Later series such as *The Dark Artifices* and *The Last Hours* connect forward and backward in different ways.

Even so, Clare has long suggested that most readers begin with *The Mortal Instruments* and then move to *The Infernal Devices*. Her reason is simple: even though *Infernal Devices* is set earlier in-world, it was written after the first *Mortal Instruments* books and resonates more strongly once you understand the modern Shadowhunter baseline.

A practical introductory route through the wider universe is:

• *The Mortal Instruments*
• *The Infernal Devices*
• *The Dark Artifices*
• *The Last Hours*
• then the side collections and connected series in context

That approach follows the way many readers first built attachment to the world.

Where the companion books fit

Three companion or bridge projects are especially relevant for *Mortal Instruments* readers:

The Bane Chronicles

This collection expands Magnus Bane, one of the franchise’s most important connective characters. It is best read after you already know him through the main books.

Tales from the Shadowhunter Academy

This collection is especially valuable after *The Mortal Instruments* because it follows Simon’s next stage and also opens windows into other parts of the wider chronology.

The Eldest Curses

These books center Magnus and Alec and make the most sense after the main *Mortal Instruments* line because they build on a relationship already emotionally established there.

Best reading path by reader goal

If you only want Clary, Jace, Simon, Alec, Isabelle, and Magnus in the core series

Read the six main books in order and stop. You will have a complete experience.

If you want the classic Shadowhunter entry point

Read all six *Mortal Instruments* books, then move to *The Infernal Devices*. That is still one of the best ways into Clare’s world.

If you want the broadest emotional payoff across the universe

Read the six main books, then *The Infernal Devices*, then *Tales from the Shadowhunter Academy*, then *The Dark Artifices*. That preserves several meaningful connections.

If you already watched the adaptations and want the books

Still start with *City of Bones*. Do not try to jump into a later novel because the 2013 film and the television series both change too much for that to work cleanly.

The most common reading-order mistake

The biggest mistake is overcomplicating the entry point. Some new readers try to arrange every Shadowhunter title by internal chronology before opening the first book. That can make the franchise feel like homework. Clare’s universe is expansive, but it was also designed to be entered gradually. You do not need total mastery before you begin.

The second most common mistake is stopping after *City of Glass* and assuming the essential experience is complete. It is true that the first three books form a satisfying arc, but if you want the actual *Mortal Instruments* series as it now exists, you need all six.

Recommended order for most readers

If you want one practical answer that works for the majority of people, use this:

1. *City of Bones* 2. *City of Ashes* 3. *City of Glass* 4. *City of Fallen Angels* 5. *City of Lost Souls* 6. *City of Heavenly Fire* 7. *The Infernal Devices* trilogy 8. then whichever connected collections or later series interest you most

That route keeps the *Mortal Instruments* story intact while opening the door to the wider universe at the moment when you will care most about it.

If you are comparing the books to the screen versions, the next page you want is The Mortal Instruments adaptation guide. If you want a full orientation to character arcs, factions, and lore before branching out further, use the story guide. For broader browsing across franchises, the archive’s Books hub and Author Profiles pages help place Clare’s work in context.

The simplest truth is still the best one: *The Mortal Instruments* began as the front door to the Shadowhunter world, and it still works best when you walk through that front door first.

Where the side books fit if you want a richer but still manageable path

Once you finish the six core novels, the next question is usually not whether more Shadowhunter books exist, but which ones actually matter for a reader who began with Clary’s arc. The most useful answer is to treat the side books by function. The Bane Chronicles deepens Magnus as one of the franchise’s hinge figures. Tales from the Shadowhunter Academy matters because Simon’s post-series position is emotionally significant and because the collection opens doors into other family lines and eras. The Eldest Curses works best after you already care about Magnus and Alec through the main series. None of these should interrupt your first run through books one to six. They are richest as expansion, not as detour.

This point matters because new readers sometimes see master lists that insert every novella and collection between core novels. That may satisfy completists, but it often weakens narrative momentum. The six Mortal Instruments books are designed to carry their own weight. You should let them do that before branching outward.

Chronology inside the Shadowhunter world

If you are trying to place the books by in-world chronology rather than by publication, the picture looks different. The Infernal Devices happens earlier historically, and The Last Hours later bridges from that Victorian branch into the early twentieth century. The Mortal Instruments sits much later, in the contemporary urban New York frame that originally introduced most readers to runes, Institutes, and Downworld politics. After it comes The Dark Artifices, which benefits from knowledge gained in both The Mortal Instruments and the side collections.

That chronological map is useful once you are already invested, but it is not the best entrance route. Publication order across Clare’s universe was designed to let later books echo earlier revelations. Read purely by internal timeline and you will understand the history cleanly, but you may miss some of the intended emotional resonance.

The most practical “beyond the six books” route

For readers who want one sensible extension after finishing City of Heavenly Fire, this is the strongest practical path: read The Infernal Devices, then Tales from the Shadowhunter Academy, then The Dark Artifices, and only after that decide how deeply you want to go into the remaining companion lines. That order preserves emotional payoff without turning the franchise into a spreadsheet project.