The scent of fresh lilacs and the boom of a cannon shot muffled by distance prefaced the arrival of the rabbit hole. Louisa jerked upright in her seat, and her book fell from her lap to slap against the cold pavement of the station floor. Dropping a book would normally cause her to cringe, but instead she allowed herself a spark of excitement as a metal maintenance door creaked open on rusty hinges. Golden light spilled out onto dazed commuters. Was this it? Was this finally it?