Feeling cast off when her best friend outgrows their shared love for a favorite celebrity, Cath, a dedicated fan-fiction writer, struggles to survive on her own in her first year of college while avoiding a surly roommate, bonding with a handsome classmate who only wants to talk about words and worrying about her fragile father.

The story is supposed to be over. Simon Snow did everything he was supposed to do. He beat the villain. He won the war. He even fell in love. Now comes the good part, right? Now comes the happily ever after... What he needs, according to his best friend, is a change of scenery. He just needs to see himself in a new light. That's how Simon and Penny and Baz end up in a vintage convertible, tearing across the American West. They find trouble, of course....

Simon, Baz, Penelope, and Agatha return to England, back to the Watford School of Magicks, and back to their families for a final adventure.