
Magisterium
fantasy
Series · fantasy
The Eldest Curses series by Cassandra Clare has 2 books and is best read in publication order, starting with The Red Scrolls of Magic (2019).
Start here: The Red Scrolls of Magic (2019) — then read straight through in publication order.

The order the books were released — the default way to read the series.
The Eldest Curses hands the spotlight to Magnus Bane and Alec Lightwood, the Shadowhunter Chronicles' most beloved couple, in adventures that sit alongside the main Mortal Instruments and Infernal Devices timelines rather than inside them. The Red Scrolls of Magic opens with Magnus and Alec's first vacation together across Europe, derailed almost immediately by the reappearance of Magnus's old friend Ragnor Fell with news of a demon-worshipping cult -- and by Alec's discovery of just how much history, and how many old flames, four centuries give a warlock. The Lost Book of the White raises the stakes with a magical grimoire capable of undoing Shadowhunter and Downworlder law itself.
Co-written with science fiction author Wesley Chu, the series leans into banter, romance, and globe-trotting adventure more than the main Shadowhunter novels, giving Magnus's centuries of backstory room to breathe while deepening his relationship with Alec. It's written for readers who already know the couple from the main series and want more of them front and center, rather than as a starting point for newcomers.
Read The Red Scrolls of Magic and The Lost Book of the White in publication order after finishing (or at least starting) The Mortal Instruments -- both books assume familiarity with Magnus and Alec's established relationship and reference events and characters from the main series. A third book, The Black Volume of the Dead, has been announced but has no confirmed publication date; Cassandra Clare has said its story is tied to events in the still-unfinished Wicked Powers trilogy, so it will likely arrive after that series progresses further.
Two published so far: The Red Scrolls of Magic (2019) and The Lost Book of the White (2020). A third, The Black Volume of the Dead, has been announced but has no confirmed release date as of August 2026.
Publication order: The Red Scrolls of Magic, then The Lost Book of the White. Both are best read after The Mortal Instruments, since they focus on Magnus and Alec's established relationship.
No, it's a side series focused on Magnus and Alec rather than required reading for the main Mortal Instruments/Infernal Devices/Dark Artifices storyline, though it enriches Magnus's backstory.
No release date has been confirmed. Cassandra Clare has indicated the book's events are linked to the still-unfinished Wicked Powers trilogy, so it isn't expected until that story advances further.
Wesley Chu is an American science fiction and fantasy author (the Tao series, the War Arts Saga) who co-writes The Eldest Curses with Cassandra Clare.
Reading order last verified .