As an example to help me explain that appearances are not always what they seem this one has come to my mind. When Paul's school, Lake Windsor Downs had a terrifying sinkhole emerge from beneath it, Mrs. Fisher wanted no part of the school any longer. As a result from this event, Paul transferred to Tangerine Middle School where he has learned to be tough skinned. Before Paul transferred to Tangerine, His mother took a tour of the school to see what it would be like for Paul to go there. She wasn't very impressed by it but the roughness of the school taught Paul to be less afraid of his demonic brother, Erik and be more confident in what he says him. I hope that example helped explain to you that appearances are not always what they seem.
If my second paragraph didn't help you understand the theory of appearances not always being what they seem, then this paragraph might give you more information. At the beginning of the book, when Paul's family first moved to Tangerine, Mrs. Fisher was freaking out about the muck fires. Since they had just moved in, nobody in the family was used to the smoke that lingered in the air, day after day. She called the fire department because she though there was a fire but just because there was smoke didn't mean there was a fire (and there wasn't.) As you can see, appearances are not always what they seem.
To make appearances that aren't always what they seem completely crystal clear for you, I'm writing yet another paragraph. Antoine Thomas, the star quarterback for Lake Windsor High School,