Mary discovers an old broomstick and the rare Fly-by-Night flower in the forest, and is suddenly whisked away to a secret school of magic that's run by a headmistress and a doctor.

Song Xiaodong, a researcher in China's Liaoning, is affectionately known as a "tree doctor." For over 40 years, he has dedicated himself to protecting Pinus sylvestris. His work now helps to safeguard ...