Unfettered

Determined to take control of their fates, Arjen and Arien escape Derolina Castle at the age of sixteen after their cruel mother dies. They adopt new names and find a home in the city of Aramore, while the Emperor of Yuriana searches for his missing children. Two years later, the twins stumble upon a sinister plot, and as they become more deeply involved, they are in danger of losing their newfound freedom.

(Also on AO3!)