"Forced to do civic service, Valentin Lemonnier landed in Boulogne-sur-Mer, in a center for elderly people with dementia which recreated a village from the sixties. In his internship report, the solitary teenager judges this change of scenery: very radical. His first mission: to announce to a boarder who answered a competition via Salut les amis in 1967 that Franc?oise Hardy will unfortunately not be able to come and sing in their city. Problem? Valentin hates upsetting people, so he rigorously promises her the reverse. Propelled through time and trouble under the amused eye of Sola, his tutor, Valentin will discover that friendship has no age. The proof? You can be a great melancholy at 14, have received a lifetime of heartbreak at age 30, and the urge to dance at age 80."--Adapted from publisher description.