A Mystery in Wood

Once upon a time, there was a pile of wood, hauled and split by a city boy with a day job. The pile of wood sat in the open air, happy and dry, until rain came. Then the city boy decided to stack the wood in a shed.

When he went outside, he found that the wood pile had doubled in size. Fresh rounds sat quietly with the split wood. "That's strange," said the city boy. He stacked the split wood and went inside.

The next day, the city boy thought he might split some of the new wood. But when he went outside, he found that the wood pile had doubled in size, again. . .

I suspect the neighbors.