A Boy, a Girl, an Owl, and a Train Compartment

Harry doesn't expect to enjoy his fifth year back at Hogwarts, and would just as soon be alone on the train... but a few hours with a certain blonde Ravenclaw may have an unexpected effect. A "what-if" variant, grounded in canon, but also inviting you to explore the possibilities. For anybody who appreciates H/L as friends and/or a potential couple.