Answer:
A few weeks ago we bought a pet snake and invited some guests over to look at it, but they couldn't come because all the electricity in the city went out.
You must be able to cite the source of the information given. This is to verify the accuracy of the research behind the information, to make sure that it's from somewhere reliable.
Is there an image? But I think it depends maybe if your left handed or right handed.
A prologue is used to give readers extra information that advances the plot. It is included in the front matter and for a good reason! Authors use them for various purposes, including: Giving background information about the story.