Hurricane Charlie strikes without warning, devastating Orlando and the treetop realm of Dreyland—a secret society of urban birds and animals. The desperate wildlife migrates to other neighborhood groves defended by hostile residents. Worst of all, the Winter Slayer, a specter with power over death, reigns supreme in the carnage and destruction.

In this chaotic post-hurricane setting, we see the power of the Creator, and of family and friendship eclipsing death as two wayward squirrels, Notch and Fuzzy, encounter Reek-Lee, Spook and other dangerous predators while searching for Heaven on Earth—the legendary Nirvana tree.

The story is told by Q, a wise old mother tree, and revolves around the three animals ruling in a Troika: Sage, a raccoon prophetess; Notch, the governor; and the regulator, a cat aptly called Dagger. They enjoy very long lives, in fact near immortality. But, after many seasons, a grudge between Dagger and Notch boils over into mortal combat, breaking the Troika, and releasing the Winter Slayer to claim what it's long been denied.

More than a modern-day animal story, in Diary of an Oak Tree we time-travel from Dreyland, back to the magical Age of Oaks, where rebellious men fought nature itself in the Battle of the Valley of Nigh, changing the Earth forever.