Deciding what obstacles the character will encounter and what characters and events will help that character, the writer can work with them on the page. The result could be a working outline for the story. Of course, there can and probably should be other characters with congruent or divergent quests so similar outlines could be developed for them. Some young authors might find writing easier after using such a setup. This graphic analysis is not the only means of contrasting and comparing books about quests and journeys.
Most fairy tales are quests of one sort or another.
Snow White seeks refuge from her stepmother and a way to achieve adulthood on her own. Rapunzel seeks a rescuer from her cruel imprisonment. Jack seeks the treasures at the top of the beanstalk. Cinderella wants to go to the ball. Encourage students to make a similar quest analysis of different fairy and folk tales.