The setting was the Animal Kingdom from Disney World. The effect it had on the plot was that they were scared and nervous because of how they didn't know where their friend was being held. Also, the addition of them being in the park during the night added a creepiness factor.
In the fantasy novel, Kingdom Keepers by Ridley Pearson presents the idea that you should embrace magic. Since there are many ways magic presents itself in the parks. Whether it is the light magic from DHIs (Disney Host Interactive) or the dark magic from the Disney villains.
The connection is between another book in the series, the connection I am making is about the villains controlling Jess. In this book, they controlled her because of her special abilities to see the future. Therefore she couldn't tell her friends any of the things that she had seen in the future.
The conflict in this book is man vs. man and good vs. evil. This is because firstly these kids are fighting the Disney villains, while they are trying to stop them. The man vs. man is kind if loose because they are fighting against made up characters, therefore saying they are not really human.
The mood of this book mostly reflects where the setting is taking place. For example, when they are at school, it isn't connected to the thoughts of Overtakers (Group of Disney Villains). But the Disney Parks at night does add a scare factor that they very well may be coming face to face with the Overtakers.