They moved from an apartment in a city so when she rented this house and saw it had a little yard and an honest-to-goodness tree, she was overjoyed. Lena’s room looks out into the tree and she daydreams when she’s supposed to be doing her homework. She can hear her mom and a young pupil downstairs practicing “Twinkle, Twinkle Little Star” for the millionth time. As she tries to see the baby birds in a nest she’s been watching, she thinks about Trevor.