In a kingdom where all is measured by birthright, moving up in society is almost impossible. Which is why young Rani Trader's merchant family sacrifices nearly everything to buy their daughter an apprenticeship in the Glasswrights' Guild - where honor and glory will be within her reach.

But being in the wrong place at the wrong time places Rani in the middle of a terrible conspiracy that leaves the Royal Prince dead - and her guild torn asunder. Branded a traitor, she slinks through the city streets, changing her identity to avoid being caught. And as Rani rises from the city slums to the royal household, she uncovers an elusive brotherhood whose deadly venom reaches out to stain the heart of her guild, the heart of her family - and the heart of her king....