Book excerpt: Dear Kids, A long time ago, when you were little, Mom and I took you to where we wanted to build a house. . . . I remember there was one tree, however, that the three of you couldn’t stop staring at. . . . After the family spares him from the builders, Steve the tree quickly works his way into their lives. He holds their underwear when the dryer breaks down, he’s there when Adam and Lindsay get their first crushes, and he’s the centerpiece at their outdoor family parties. With a surprising lack of anthropomorphizing, this is a uniquely poignant celebration of fatherhood, families, love, and change.