Well you see Pepy is a loser
He started to observe, reconnoiter means to make a military observation of something so he throughly examined the corridors.
Answer: In this sentence, the word fancied means trusted or liked.
Explanation:
Fancied can mean either mean a regard something or to feel a liking for someone or something. In this case, she had trusted/liked the shadows.
Yes, "All teenagers are mean and smelly they really need to clean up their acts." is a run on sentence.