Beryl Grace

Ms. Grace was briefly the girlfriend of Zeus, and the mother of Thalia Grace and Jason. Thalia described her as being an alcoholic.

History
Ms. Grace dated Zeus during the eighties, when she was a TV starlet with a "big poofy eighties hairdo." Their relationship resulted in the birth of Thalia.

Seven years after Thalia Grace was born, she gave birth to a son by Zeus as Jupiter named Jason.

Two years later, Jason was taken by Hera. Thalia, who went to get the picnic basket, came back to see Jason gone and her mom crying. Thalia tried to find him, but was dragged away by her mom. Thalia later called the cops on her mom.

She later developed a drinking problem.

Ms. Grace's drinking problem grew worse, and died in a car accident two years before Thalia was awakened by the Golden Fleece.

The Demigod Files
Ms. Grace appears in The Demigod Files, but only by appearance. Thalia, Percy, and Nico are in the Underworld on a mission for Persephone to recover Hades' stolen sword.

Melinoe appeared to Thalia as Ms. Grace, yelling at her for abandoning her. Thalia was shocked by this, and protested that her mom had abandoned her. Percy manages to destroy the illusion by out smarting it, and Thalia is very shaken up from the experience.

The Lost Hero
When Thalia is reunited with Jason, she explains what happened the day he dissapeared and mentions the reaons she ran away from her mother. She also tells him how she died two years before Thalia was awoken.

Appearance
She is described a pretty woman with blonde hair and blue eyes.