When AI rewrites history, who decides what's true? In Fighting Deepfakes Across Time , the third installment of The Bookmark Chronicles, the thought police have been defeated—but the new threat is far more insidious. HistoryLens promises "immersive education" through AI-generated historical experiences, but when Zoe Williams discovers her great-grandmother's civil rights activism has vanished from every digital record, she realizes the system isn't just erasing history—it's weaponizing it. As students across Oakville experience sanitized versions of Japanese internment, Indigenous boarding schools, and labor struggles, a dangerous pattern emerges: oppression is being rewritten as cooperation, resistance as unnecessary, and trauma as exaggerated. The victims' own stories are being used to teach future compliance. Grace Clearwater must reclaim her great-grandmother's boarding school survival story before it becomes a tale of "educational opportunity." Carlos Martinez watches his family's farmworker organizing history transform into "grateful cooperation." Alex Kim-Torres sees LGBTQ+ resistance movements disappear entirely. And Jasmine Johnson's investigative instincts detect the massive scale of coordinated historical manipulation. With their magical bookmarks as guides, this new generation of Guardians faces their greatest challenge yet: saving not just books or thoughts, but the authentic past itself. Because when deepfakes can steal history, they can control the future—unless someone teaches the difference between what happened and what's comfortable to believe. Perfect for readers who loved The Giver , Little Brother , and The Hate U Give , this timely tale combines magical realism with urgent themes of media literacy, community resistance, and the power of authentic storytelling. Series note: While part of The Bookmark Chronicles, this novel can be enjoyed as a standalone story.