Read half of a book- exactly half! You can either cut the number of chapters in half or cut the number of pages in half. If it’s the number of pages, you can finish the chapter.
After reading half of the book, set it aside and write what you think will happen next. Write like you are continuing the story- you can write like the author does but you don’t have to.
This is an activity to test your imagination and how well you know the characters.