Answer: 1. Fires were NOT accidental 2. multiple fires were started
Explanation: This appears to be a work of a arsonist. Fires started in several places meaning they were not accidental fires causes by natural things. Most arsonist start fires in multiple places, they need to go faster to get that high they feel when a fire is set. A profile for an arsonist can be set as well. Also note that most arsonist are male and rarely female but this does not exclude the possibility of this being a female. Arsonist feel emotional release as well as all criminals so think of this as an emotional outlet, they only resorted to this because they're life must be stressful. That is a few things about the typical profile of a arsonist but note that they do not have to perfectly line up. Enjoy the book I guess.