Fifteen-year-old Abigail Hernandez disappeared on October 9 after leaving her high school in Conway, New Hampshire. Last week, she returned home, The Associated Press reports.

Police still have many unanswered questions about Abigail’s disappearance, including: Who helped keep her hidden for so long and did she go willingly or was she coerced?

The Hernandez family released the following statement on Friday via the Bring Abby Home website:

The Hernandez family expresses their deepest thanks to the community, law enforcement and media for their continued support.  The extent of our gratitude can hardly be expressed in words and we are beyond overjoyed about Abby’s return.

The last few days have been extremely busy while law enforcement and medical concerns have had to be addressed.  We are working in full support of law enforcement’s efforts to help the ongoing investigation.

Right now, Abby is resting, extremely tired and in deteriorated health, and has lost a lot of weight.  She is working to build her strength back and we hope soon she will be back on solid foods.

We appreciate people’s vigilance as they share the sketch photo that law enforcement has distributed and we hope that very soon this long, long ordeal can come to some closure.

At this time we are trying to focus on the peace and joy of the moment of Abby’s return.

Paul Kirsch and his family, who are close friends of the Hernandez family, had a chance to spend some time with Abby yesterday.  Paul noted that “We talked with Abby.  She is extremely thankful to God, to her community and to everyone who searched for her and she appreciates all of the positive support she has continues to receive.”

Amanda Smith, close friend of the family, has been able to spend time with Abby everyday since her return.

“Abby is very thin and weak. We continue to work towards getting her to eat. Abby has shown incredible courage through this. She is beyond grateful to be home and is just relaxing, resting, trying to get her health back. Abby is forever thankful to everyone who offered help, support and prayers. I am incredibly proud of Abby for everything she has and continues to overcome in this ordeal.”

Kieran Ramsey, assistant special agent in charge of the Boston Division of the FBI, told The Boston Globe that the case has been strange from the start. When Abigail disappeared, her social media activity stopped. Two months later, Abigail wrote a letter to her mom. Nine months after her disappearance, Abigail reappeared.

“If she was taken against her will or enticed away, we have the potential that somebody could do it again,” Ramsey told the newspaper. “We haven’t substantiated that yet. That’s why we haven’t raised the alarm.”

In the meantime, police have released a sketch of the man Abigail said drover her away on October 9.