Lady Osterneth "Opal"

Osterneth is a planeswalking lich from the war torn world of Eberron. She came to Earth hunted by the the Gith, fleeing the devastation the Githyanki rained down on her home of Khorvaire. A student of Vecna since she was little, Opal was a powerful and clever sorceress who regularly worked in espionage and assassination.

The Power of Names
In order to escape the Githyanki, Jaela Daran did something most mages would consider unthinkable and used the power of the Silver Flame to change her true name. This helped to mask her location and identity from anyone in the multiverse, but at great cost.

Jaela became Opal, but as time passed she began to forget what it was to be Speaker of the Flame and fell further into the identity of Lady Osterneth. It wasn't until the Sandman Murders in the late fall of 1992 that something familiar began to stir inside her.

After her phylactery was held hostage by Richter von Brandt, Opal was forced to choose between herself and the few people from Earth she had grown close to. She was on the verge of making the selfish decision to save herself when the voice of Jaela, a voice she had not heard in over a century, returned from the forgotten reaches of her mind and refused to walk away from her friends.

That night Opal, Jack, Vulco, Lugh, and Howe stood their ground against Arkham and the Sandman; successfully stopping the mad mage from opening a door to the Outer Realms and ushering in the forces of Vlaakith the Lich Queen. From that night on the voice of Jaela and the Silver Flame would only grow in Opals' mind, demanding to be released.

When Lazarae's Phylactery began to fail and a rescue expedition to Eberron was needed to save the ancient elf and his investigator partner, the duty fell to Osterneth to lead the way across the Realms as she was the only one who knew the secret paths through the multiverse.