Twelve-year-old Willow discovers an enchanted library hidden beneath her suburban home, filled with ancient books and magical creatures that hold the key to a hidden world and her own family legacy....

In a hidden world beneath the earth, a young sprout named Tilly uncovers the mysteries of the Sprout Kingdom, learning about courage, friendship, and the power of dreams....

In this urban quest, Xiao Yu, a curious suburban boy, discovers a hidden world beneath the city with his mother, facing challenges and secrets that will change their lives forever....