When Noor Became a Princess

Nour is a girl who loves everything about princesses, so she sneaks into her mother's room and takes the princesses story without her knowledge. When she tries to open the story, the story will not open, but its pages will be heavily applied. Noor will try again to open the story after she knows the only condition that the story will ask her to do. What is this condition, see? And what will Nour do to achieve this condition? Will Nour be able to open the story?