Weasel

Formerly a pickpocket, Weasel is the clerk to Justice Holis, a nobleman loyal to Prince Edoran and Deorthas.

Shield of Stars
In Book 1, Justice Holis is captured by men loyal to Regent Pettibone, the tyrant who rules Deorthas in the name of Prince Edoran. Weasel escapes and attempts to free Justice Holis. Unfortunately, Weasel is captured and put locked into a storage room with Arisa. They escape and make their way out of the city.

Over the course of a couple weeks, they visit various villages and a seaside town. Arisa is kidnapped by palace guards, but Weasel frees her. They travel to Arisa's mother, The Falcon, who leads a band of rebels.

Weasel and Arisa lead the Falcon and the rebels back to the palace to free Justice Holis. They succeed, and in the process discover the Shield of Stars, one of the three ancient artifacts of Deorthas. They confront Regent Pettibone, whom the Falcon kills. Justice Holis becomes the regent, and the Falcon becomes the lord commander of the army and navy.

Sword of Waters
In Book 2, Weasel is taking lessons with Prince Edoran. When Arisa comes to Weasel for help uncovering a conspiracy and an assassin, Weasel and Prince Edoran help Arisa discover who is trying to embarrass both Arisa and the Falcon.

Later, Arisa reveals to Weasel her suspicions that the Falcon is going to commit treason. Arisa and Weasel break into the Falcon's office and discover evidence of the treachery. Together, they help Prince Edoran avoid being kidnapped, with Weasel taking Edoran's place.

Description
Weasel is 14 years old and an orphan. He is one of the most skilled pickpockets in Deorthas and can open a lock with his lockpick almost as fast as someone can open the lock with the original key. He is slightly shorter than Arisa, his closest friend. He is loyal to Justice Holis, whom he has come to love as a father figure.