Crimson Crown - Gem Apocalypse, #5

When Aaron discovers his father, King Gideon, and brother, Prince August, are still alive and a verdict for treason to come within a few days, Aaron has no choice but to infiltrate the palace, no matter the cost. Forced to align himself with the rebel leader Rhys, Aaron and Lorelei must return to the palace to seek justice and protect the crumbling nation of Brayleigh. Will she be loved by all who know of her as the murderess or feared for her deadly sins? This is the fifth and final book in the Gem Apocalypse series.
It is intended to be read in order.