self.read_db()? instead of self.database.read_db()?;

[bjeschke]

In create_epic() and create_story() you wrote

let mut parsed = self.database.read_db()?;

but you implemented

pub fn read_db(&self) -> Result<DBState> {
    self.database.read_db()
}

above.

So why you not write:

let mut parsed = self.read_db()?;