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Cover of Charlie Thorne and the Last Equation

Charlie Thorne books in order A series by Stuart Gibbs

The Charlie Thorne series by Stuart Gibbs has 4 books, from Charlie Thorne and the Last Equation (2019) to Charlie Thorne and the Royal Society (2024). Read it in order, starting with Charlie Thorne and the Last Equation.

Reading order: 1 Charlie Thorne and the Last Equation (2019) · 2 Charlie Thorne and the Lost City (2021) · 3 Charlie Thorne and the Curse of Cleopatra (2022) · 4 Charlie Thorne and the Royal Society (2024)

Updated September 2026

All 4 Charlie Thorne books in order

  1. 1.

    Charlie Thorne and the Last Equation (2019)

    408 pages

    Buy
  2. 2.

    Charlie Thorne and the Lost City (2021)

    384 pages

    Buy
  3. 3.

    Charlie Thorne and the Curse of Cleopatra (2022)

    391 pages

    Buy
  4. 4.

    Charlie Thorne and the Royal Society (2024)

    Buy

Charlie Thorne FAQ

How many Charlie Thorne books are there?
There are 4 Charlie Thorne books, as of September 2026.
What order should I read the Charlie Thorne books in?
In publication order, starting with Charlie Thorne and the Last Equation (2019): 1 Charlie Thorne and the Last Equation (2019) · 2 Charlie Thorne and the Lost City (2021) · 3 Charlie Thorne and the Curse of Cleopatra (2022) · 4 Charlie Thorne and the Royal Society (2024).
What is the first Charlie Thorne book?
Charlie Thorne and the Last Equation (2019).
What is the latest Charlie Thorne book?
Charlie Thorne and the Royal Society (2024).
Is the Charlie Thorne series finished?
No, Stuart Gibbs is still adding to it.
Did Stuart Gibbs write other series?
Yes: Spy School, FunJungle, Moon Base Alpha and Once Upon A Tim.

More series by Stuart Gibbs

All Stuart Gibbs books

Sources: series order and dates from Wikidata and Open Library. Last updated September 2026.