Sarah had always been an early riser. Her job as a nurse required it, and after years on the same schedule, her body woke her before the sun even began to rise. This morning was no different. As she shuffled into the kitchen, she flicked on the light and set the kettle to boil. While waiting for her tea, Sarah glanced out the window. It was still dark outside, but she could just make out the silhouette of the large oak tree in her backyard, its branches swaying gently in the pre-dawn breeze. But something was different today. There, among the leaves, she saw a figure. Her heart skipped a beat. It looked like a person, standing perfectly still in…