Inheritors of Power — Juliette Wade

The third book of The Broken Trust continues an epic struggle for power, kindled in the hearts of two brothers, as it spreads to crack the foundations of their underground society.

Many years have passed since the Eminence Nekantor and Heir Adon seized power, and life in Pelismara has found a fragile equilibrium under Nekantor's thumb. Now the Imbati Service Academy suspects that Xinta, Manservant to the Eminence, may have taken control of Nekantor for his own sinister purposes, endangering what peace still remains. Imbati Catín, an Academy prodigy, vows service to Adon, balancing two core purposes -- to advance her Master's designs on power, and to determine the full extent of Xinta's influence.

When a trash hauler named Akrabitti Corbinan walks into a place he doesn't belong, everything falls out of balance. Catín, who is investigating this newly discovered hidden library, immediately arrests Corbinan for trespassing. Nekantor then seizes Corbinan, believing he's a spy who sought to topple the government, and Xinta vanishes him before Catín can determine his intent. What was Corbinan really seeking? What dangerous information does the library contain, that Xinta might seek to control? And what might happen if someone more dangerous finds Corbinan first?