Oh man, if ever there were a guide or a mentor, it's Gram and Gramps Hiddle. They carry Sal successfully through her grief at having lost her mother, and they do it with endless amounts of love and humor. Our heart just swells to think of them.
Similarly, Mrs. Partridge watches over Sal's neighborhood in Euclid, injecting it with doses of wisdom and much-needed mystery. She's an unexpected guide, but a guide nonetheless.