“This is my baby,” she said, stroking the doll’s blonde hair. She named her Christine after the woman who edited her book, “Dear World,” a phrase borrowed from her tweets.

The two are still using the @AlabedBana Twitter account — now with more than 363,000 followers — to post personal messages and comments on current events.

Bana was relaxed and confident, self-possessed beyond her years. Her waist-long brown hair cascaded down her back in waves as she chatted excitedly about seeing the Statue of Liberty, Central Park and the tall buildings.

She sang a few lines of a Justin Bieber song and talked about her new school in Turkey. Her favorite subject is math, and she wants to be an English teacher when she grows up.

But when she talked about Aleppo, she was somber and spoke carefully.

“It was very hard,” Bana said, recalling how her home was destroyed in an airstrike. “And also, you know, my friend, her dad and brother died.”

When her Twitter account was opened in September 2016, thousands shared messages of support for her. But there were also critics.