Honor receives her brother’s last letter from Iraq three days after learning that he died, and opens it the day his fellow Marines lay the flag over his casket. Its contents are a complete shock: concert tickets to see Kyra Kelly, her favorite pop star and Finn's celebrity crush.

It isn’t easy being the rather overlooked and unhappy youngest sibling to sisters named for the other six days of the week. Sunday’s only comfort is writing stories, although what she writes has a terrible tendency to come true. When Sunday meets an enchanted frog who asks about her stories, the two become friends...