The escaped teen claimed that her 12 siblings - ranging in age from 2 to 29 - were held captive in the home by their parents, officers from the Perris Police Department and Riverside County Sheriff's Department said.
At the home, deputies found children shackled to beds in "dark and foul-smelling surroundings".
Authorities initially believed that all the victims they found were children.
- Law enforcement officials are investigating the cause after discovering 13 children who claim they were held captive under lock-and-chain by their parents.
The nightmarish discovery came Sunday after one of the children, a 17-year-old girl, escaped from the house on the 100 block of Muir Woods Road and dialed 911 on a cellphone she found in the home, according to an account released by Perris police.
Officers said the 17-year-old girl was emaciated and looked like she was only 10 years old.
"The parents were unable to immediately provide a logical reason why their children were restrained in that manner", sheriff's officials said.
The parents were detained and taken to the Robert Presley Detention Center, where they were booked on suspicion of torture and child endangerment. On top of being in chains and padlocked, the victims were also living in squalor and malnourished, investigators said.
"All 13 victims, ranging from the age of two to 29, were transported to the Perris Station and interviewed", the investigators noted in a press release.
Investigators interviewed the parents, 57-year-old David Allen Turpin and 49-year-old Louse Anna Turpin, at the home. Child Protective Services and Adult Protective Services arrived to assist in the investigation. The victims were given food and drinks, as they said they were "starving". The seven adults were beign helpd by Riverside Adult Protective Services. Their bail was set at $9 million each.