It was that noise again. The same as last night and the night before. Simon looked over to his brother’s bed. Brad was still fast asleep, snoring gently. How come it never woke him up? Simon crawled carefully out of bed. He didn’t want to wake Brad. He might make a noise, and that might scare off whoever it was or whatever it was out there. It was surprisingly chilly considering how hot it had been earlier. Simon draped a blanket round his shoulders. He crept over to the window and opened the curtains just enough to get a view of the garden. He couldn’t see anything. There it was again. Something that started like a whimper and ended like a screech. Then it went quiet. Simon was about to give up and go back to bed when he noticed the strange light moving slowly across the lawn.