Books like The Wizard's War (Key Hunters #4) by Eric Luper

When an unseen darkness saps the power of mature wizards, Nita and Kit must unite the younger spellcasters to wage a war of imagination and restore balance to their magical world.

A brave knight and a book-loving girl set off on an adventure to rescue a girl who can’t read.

Cleo and Evan uncover a secret, enchanted library behind the school’s librarian and must journey through magical books to rescue her.

When Young Anthony Monday discovers a cryptic diary, violent storms erupt across Weatherend. Together with Miss Eells, he confronts an ancient danger threatening to turn the town into an icy wasteland.

As an apprentice to the wizard Caladrius, the reader enters a war among wizards where every choice shapes the adventure in this American children’s fantasy plot‑your‑own story.

When Alice defeated her uncle Geryon and declared war on the totalitarian ways of the Old Readers, she knew she would have a hard fight ahead. What she didn’t anticipate was how ruthless the Old Readers would be. All the creatures she promised to help are being threatened, and slowly all of Alice’s defenses, emotional and physical, are being worn away. So when Ending (the giant cat-like creature who helps rule the magical labyrinth in Geryon’s library) hints at a dangerous final solution, Alice jumps at the chance, no matter the cost to her life. She and her friends—a fire sprite, Ashes the cat, and the other young Readers she met during her previous adventures—go on a quest to free the one creature possibly strong enough to overturn the Old Readers once and for all. But Alice has forgotten one crucial thing: Ending is a cat, and cats are not known to be trustworthy. And Ending has plans of her own… (less)

A young reader’s fantasy adventure where friendship and mystery intertwine amid castle halls, Viking lore, and supernatural magic.