My Grandmother Asked Me to Tell You I'm Sorry by Fredrik Backman. Elsa is seven years old. She is brilliant and bullied. Before her grandmother (who had been her best – really only – friend) dies, she gives Elsa a letter and asks her to deliver it. This is the beginning of what turns out to be a great odyssey, with Elsa delivering letters to various people to whom her grandmother wished to extend posthumous apologies. In the process, Elsa learns about herself and her family. It’s a heartwarming and engaging story.