As the oak tree blossoms, robins and squirrels begin to build their nests, bees fly in and out of their hive, and the tree comes to life. Not only is the oak a living thing itself, it is also a habitat for other living creatures that depend on it for nesting, food, and shelter. Readers follow the tree and its inhabitants through seasons of flowering, leafing and fruiting, the return to a deep winter sleep, and the springtime reawakening -- completing a cycle which has gone unbroken for more than one hundred years.