The first found neatly place mushroom is a puzzle, the second, slightly higher is a clue. The answer is squirrels, their thoughtful and perfectly poised provisions seem seem to be both a food guide to the wild mushrooms and a map of their territory, and clue to how the squirrels think. How do they navigate back to find their fungi? When do they plan to to cash in their caches? Are their mushroom thieves about?