The are Japanese mystery novels by Kouhei Kadono. Kadono began his career writing light novels, but this series came from a mainstream publishing label, Kodansha Novels. In 2008 Del Rey Manga announced that they would be publishing the first novel in the series in English,Del Rey at NYCC but did not release any.
Novels , June 2000, When a dragon is murdered, the main characters must travel the globe, trying to discover how such a thing was even possible. , June 2001, During a sorcery tournament, sorcerers begin dying in unusual ways. , December 2002, A princess is found encased in crystal, and the main suspect flees to an island ruled by pirates , January 2005, In the aftermath of destruction, investigators ponder links between unsolved mysteries from a town's past. , March 2009, , January 2016, Beyond The Dragon's Skies
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