What grades did Adeline skip in school?

Adeline skipped forms two and four.

At the end of my first year at Sacred Heart, I skipped a grade, and the girls started calling me Scholar.

This is Adeline Yen, top student of our class. She skipped two grades and will be going into form five after the holidays, at thirteen!”'

The next year, she skipped a grade and attended form three. We just received a letter from Mother Superior saying that they’re encouraging her to skip another grade. In September she’ll be going into form five—and she’s only thirteen years old.”