Can you still have a home if you don't have a house? Always think in threes and you'll never fall, Cora's father told her when she was a little girl. Two feet, one hand. Two hands, one foot. That was all Cora needed to know to climb the trees of Brooklyn. But now Cora is a middle schooler, a big sister, and homeless. Her mother is trying to hold the family together after her father's death, and…