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The Immortal Fire

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About The Book

Charlotte and Zee get entangled in a conspiracy to take down Zeus in this thrilling third and final book in the middle grade Cronus Chronicles series inspired by Greek mythology—now with a new look!

After their near-fatal battle with Poseidon, Charlotte and Zee would love nothing more than to relax and forget that the Greek gods are real. But with the world in peril and no one else to save it, that just isn’t an option.

Charlotte and Zee are approached by the Prometheans, an ancient brotherhood who protect mankind from the whims of the gods. They think they’ve finally found a weapon capable of bringing Zeus to his knees. But using it would come at a great cost, one Charlotte and Zee are not willing to pay.

Deciding that, this time, the gods are the lesser evil, the two strike out for Mount Olympus with the Prometheans, an angry Chimera, and other mythological beasts following close behind.

About The Author

Photo Credit:
Anne Ursu

Anne Ursu is the author of The Shadow Thieves, The Siren Song, and The Immortal Fire, all books in the Cronus Chronicles series. She’s also the author of the acclaimed novels Not Quite a Ghost, The Troubled Girls of Dragomir Academy, and The Real Boy, which was longlisted for the National Book Award. The recipient of a McKnight Fellowship Award in Children’s Literature, Anne lives in Minneapolis with her family and an ever-growing number of cats. Visit her at AnneUrsu.com.

Product Details

  • Publisher: Atheneum Books for Young Readers (June 3, 2025)
  • Length: 448 pages
  • ISBN13: 9781665969758
  • Ages: 8 - 12

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More books from this author: Anne Ursu

More books in this series: The Cronus Chronicles