It's the last day of school. Rowan Roth and Neil McNair have been bitter enemies since they entered the school. They have competed in test scores, school board elections, and even push-up competitions. And while Rowan, who dreams of becoming a romance novel writer, is looking forward to the future, she'd love to take down her irritating nemesis one last time. When Neil becomes the valedictorian of the course, Rowan has only one chance left to win it: "Howl, " a kind of gymkhana for seniors that takes them on a tour of Seattle, a farewell tour of the city she loves so much. But upon discovering that a group of students are out to defeat them, she and Neil reluctantly decide to join forces until they are the only two players left... And then, they must finish off the other one. The more time she spends with Neil, the more he realizes Rowan is so much more than the weird bookworm he's been competing with for the past four years. And perhaps the boy she claims to despise might actually be the man of her dreams.