If you’re following in Camus’s late morning footsteps, it’s rewarding to leave his route at Place Saint-Sulpice and detour through the streets that lead into it: rue Férou (with Rimbaud’s poetry wall), rue Servandoni (where William Faulkner, Olympe de Gouges, Roland Barthes, Eugène Atget, Juliette Gréco, and others lived), and rue Garancière. This quartier holds the secret of why Paris can take such hold of you, live in your memory forever.