A missing 6-year-old Texas girl was found unharmed in a drug house in Austin with her mother, police told FOX News.

Comal County police tracked down Jewel Noel Klein and her 41-year-old mother Tonya Renee Martin Friday after an Amber Alert was issued for the pair earlier in the week, according to sheriffs department spokesman Mark Reynolds.

"The child was unharmed and the mother's been arrested and taken into custody," Reynolds told FOX News.

Police believe Jewel was picked up from school on Tuesday by her mother, according to MyFOXHouston.com. Deputies were called that night to the home of the little girl's grandmother, 68-year-old Melba Balantac, to find her severely beaten.

Balantac was able to give them limited information implicating her daughter in the attack before she was taken to the hospital, MyFOXHouston.com reported. Balantac is Martin's mother and has legal conservatorship of Jewel.

Investigators spotted the car sought in the Amber Alert, followed the male driver and stopped him for questioning, Reynolds told FOX. He led police to the house where Jewel was staying with her mother, and Martin was detained without incident.

Click here for more on this story from MyFOXHouston.com.