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Katana Sandan: The Code of Bodhidharma
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11 August 2026

The third installment in a coming-of-age YA urban fantasy series set at a magical martial-arts boarding school. An assassin on the loose, a school with an uncomfortable history, and a heroine whose growing power draws the wrong kind of attention.
An Assassin Stalks The Arashi. A School Hides Its History. A Student Grows Too Strong.
At the Hall of the Dragon, a boarding school where martial arts and magic are one discipline, Katana's talent has begun to attract scrutiny. Visiting headmasters watch her spar. Questions follow her through the corridors. Power like hers isn't supposed to appear in a student.
Then an assassin starts hunting the Arashi, and episodes from the Hall's own past begin to resurface. The further Katana trains, the more the old certainties crack: about her school, her teachers, and the war she was recruited into.
When she unearths the truth the Hall has guarded longest, Katana faces a question no master can answer for her. Can she defeat a monster without becoming one?
Katana Sandan is the third book in the Katana Series, a YA urban fantasy, for readers who love magical boarding schools, martial-arts magic, morally tested heroines and slow-burn mysteries. Perfect for fans of Cassandra Clare, Kelley Armstrong and Rick Riordan.
Praise for the Katana Series:
★★★★★ “Just keeps getting better!”
Ken Warner grew up reading science fiction and fantasy; his early favorites were The Chronicles of Narnia, Dune, and of course, Lord of the Rings. When he began his martial arts training in high school, he heard many myths and legends about masters who possessed mysterious powers, typically attributed to their internal chi energy. He often thought these legends would make a great story. This ultimately led to his first books, The Katana Series. Ken continues to focus on science fiction and fantasy in his writing. He went full time with his author career late in 2020. Ken lives in Connecticut with his wife, Parveen, and their many dogs and cats.