I fell asleep. But later that night I woke up. There was moonlight coming through the window, and shadows of tree branches fell onto the bed, waving gently in the breeze.""And then you saw the ghost?"James laughed. "Dear chap, the branches WERE the ghost. There weren't any trees within a hundred yards of that house. They'd all been cut down years before. I saw the ghost of a tree.
Audrey Niffenegger, Her Fearful Symmetry
ghosts