ANTIOCH, Calif.  A woman who was kidnapped as an 11-year-old in 1991 was reunited with her family on Thursday after the police here arrested two suspects in the case and discovered a hidden compound where she had apparently been kept for nearly two decades.

The woman, Jaycee Dugard, was dragged into a car on her way to a bus stop 18 years ago as her stepfather watched helplessly from the family home in South Lake Tahoe, Calif. The police could find no trace of the car, or Ms. Dugard, a blond, blue-eyed girl last seen wearing a pink windbreaker and stretch pants.

On Wednesday, the police arrested Phillip Garrido and his wife, Nancy, and charged them with Ms. Dugard’s abduction.

Mr. Garrido, a convicted sex offender who was on federal parole for a 1971 rape and kidnapping, was also charged with rape and acts of child molestation and sexual penetration of a minor. The police said that he had apparently fathered two girls  now 11 and 15  with Ms. Dugard.