They came home from school to find their father missing.
It had started off like any other day. As usual, Ronald Soza dropped off his kids Cesia, 17, and Ronald Jr., 14, at school in Pompano Beach, Florida.
Ronald Soza returned home to find U.S. Immigration and Customs Enforcement (ICE) agents waiting for him at his doorstep. Soza, an undocumented immigrant from Nicaragua, was taken to a detention center.
When the teens -- both legal residents -- came home to an empty house at the end of the day, they realized something was very wrong.
Then the phone rang. It was their father, trying to reassure them that everything would be OK.
"Even though we knew my father might get deported, we never thought that it would actually happen, especially since ICE already took our mother away five years ago," Cesia told CNN.
But it did happen. Ronald Soza was deported to Nicaragua, joining his wife, Marisela.
Suddenly, the teens' parents were gone and the Soza children faced a frightening future with foster families and unfamiliar schools.
It's been weeks since that terrible day last September, and they still haven't seen either of their parents.
The Soza kids "were devastated after their mother was deported," said Nora Sandigo, a family friend and immigrant rights activist. Now, they're "living a tragedy ... they've lost everything, their parents, home... everything." Now they're living with Sandigo and her husband and two girls in Miami.
ICE told CNN in a written statement that Soza was arrested last year and was allowed to return home under certain conditions, such as attending appointments with immigration authorities. But while under supervision, Soza committed 39 violations, including failure to attend appointments with immigration authorities, according to ICE.
Cesia said her father was overwhelmed with his single-dad duties. He did attend his ICE appointments, she said, although "it's possible he arrived a few minutes late. But perhaps they counted that a no-show."
The siblings represent America's young legal residents who are at risk for long-term emotional trauma because of a system that doesn't deal with the situation. About 5,100 U.S. children in 22 states have lost parents to deportation, according to the Applied Research Center -- a 30-year-old racial justice think tank. Some 15,000 more face similar threat in the next five years.
These families live in constant fear of deportation as their kids attend school and pledge allegiance to the flag. Constantly worrying that their parents will be snatched away, children often feel angry, helpless and trapped.
Families like the Sozas are referred to by the system as "mixed-status families." Ronald Jr. was born in the United States. Cesia -- who was born in Nicaragua -- lives in the U.S. legally under the Deferred Action for Childhood Arrivals program. DACA grants two-year reprieves from deportation to undocumented youths who came to the U.S. as children.
At their father's request, Sandigo has become the Sozas' legal guardian. She receives no government funds to offset the cost of raising them.
Making ends meet isn't easy. The Soza teens rely on whatever their parents can send from Nicaragua. It's not much. Their father -- who works in construction -- says he has had a difficult time finding a job since moving there.
"We've had to leave everyone we knew behind, switch schools, and we're constantly trying to catch up in our new school," said Cesia. In the middle of all the chaos, she's been juggling paperwork for her immigration status while filing applications to several universities. Another problem: being under Sandigo's guardianship may threaten Cesia's ability to qualify for college financial aid.
"It's been really stressful doing all this without my parents," she said. "I miss them so much."
But the siblings have managed to hold on to a few reminders of their former life: some family photos and their precious Chinese Shar-Pei, Snoopy. They talk to their parents on the phone every day. Cesia says it doesn't come close to having them by her side.
Their behavior has changed since that day in September, Sandigo said. At school, the teens keep to themselves and don't talk much with other kids. Sandigo worries they may be depressed and are withdrawing from social interaction.
Experts say repercussions of traumatic experiences like the Sozas' can take a serious toll.
"The psychological effects on these children left behind include depression, possible conduct disorders, and having a constant sense of a diminishing and ambiguous future," said Dr. Luis H. Zayas, dean of the School of Social Work at the University of Texas. "No parent should be put through such an anguishing decision of whether or not to leave a child behind, but most importantly, how will these kids feel about their government when they grow up?"
An estimated 340,000 babies born in the United States in 2008 were the children of unauthorized immigrants, according to the Pew Hispanic Center. That number is projected to grow.