Heidi is the twelve-year-old main protagonist. She lives at an orphanage. Raven, who is fifteen, is her best friend. After finding out she has a rich aunt who is sending for her, Heidi is lying in bed one night contemplating this when she hears the window creaking.
Turns out, Raven is running away from the orphanage as well. (the reader doesn't know, but Raven heard Heidi's aunt's lawyer talking to the orphanage matron about an inheritance Heidi will receive from her dead father when she turns eighteen if she comes and lives with the aunt. Raven decides to run away and try to take the money for herself.) Heidi does not know this and decides to run away with Raven. Heidi also doesn't know that Raven is leading them to the aunt's after they have run away. Eventually they arrive at the aunt's, much to the chagrin of Heidi.
(I ran Heidi through a personality test and she came out as is an ISFJ, if I recall correctly. The website said that this personality type is the most willing to sacrifice itself for others. Not sure if this can help with character development, although I was aiming for her to be an extrovert. I'll see how it goes)
Heidi is forced to live with the aunt while Raven is forced to become a maid because the aunt doesn't want her. A couple months later, Raven sneaks in the aunt's rooms and writes out a check for herself which is the exact amount of the inheritance. Sheruns away, betraying Heidi's confidence and friendship in her. (need a little help here.)
After the aunt, who is named Eunice, finds out about the money, she blames Heidi and forces her to become a servant to pay off her "debt". Five years later Heidi can't take it anymore and runs away where she meets up with either a bad guy or a policeman who has taken Raven prisoner. Heidi takes her punishment instead. (Not sure what kind of punishment to do) In the end, either Heidi dies (a Disney Death, possibly, from the punishment) or they become friends again.