What Duck?

The other night at bedtime was a hard thing for K. to handle. She just couldn't get to sleep. She has discovered that a certain spot on her floor creaks a bit when she walks on it (but only when she walks on it). She kept coming out to tell her daddy that she couldn't sleep because her floor kept going Quack Quack. No matter how he tried, she didn't believe it was just her floor and it wouldn't quack if she stayed in bed. She kept looking for that duck until she was just to tired to look anymore.