The North Woods tradition of making maple syrup serves as an illuminating backdrop for John Elder's reflections on nature, literature, playfulness, and fatherhood, as he builds a sugaring house with his sons. The tail end of the sugaring season in New England is called the "frog run," when pools of snowmelt teem with frogs and the last run of sap good for making syrup flows from the maple trees. For John Elder, a longtime...