My Neighbor Totoro the novel

Eleven-year-old Satsuki and her sassy little sister Mei have moved to the country to be closer to their ailing mother. Soon, in the woods behind their spooky old house, Satsuki and Mei discover a forest spirit named Totoro. When Mei goes missing, it’s up to Satsuki to find her sister, and she’ll need help from some new, and magical, friends.