Halla was an eccentric old woman who lived on
Mimban. She was popular with the mining community there. Halla had spent seven years searching for the legendary
Kaiburr Crystal, which was said to reside in the
Temple of Pomojema.
Halla, a Force-sensitive, recruited Luke Skywalker and Princess Leia Organa to help her find the crystal artifact. They located the crystal in the temple, and Halla joined Luke and Leia when they left Mimban to rejoin the Alliance.