While writing a summery following thing should be considered.
part 1: To comply this one should think about what is the story about and how it is continued.So "what' and 'how' is the type of question one should think about.
part 2; the summery means to sum up the story in short to the audience. So it should not be that long.For example it can be within 300-400 words.
part 3: it will be best to write the summery in paragraph format.
part 4: while writing a summery it is important to cover up the significant details of the story.So one should include the main character,occurrence,climax and ending.