'Like her father and mother before her, Merrith is apprenticed to become an assassin with the Murderers' Guild. But Merrith is hopeless with a dagger and sword, inept at mixing poison, and doesn't like the idea of killing people anyway. Then a prophecy from the Soothsayers' Guild says Merrith must join an expedition to the rift caves, or Quentaris will be destroyed. Can Merrith save Quentaris - even if it means she must become a professional murderer?'
Source: The Quentaris Chronicles website, http://www.quentaris.com/books_murderers.htm