In the fourth book, Sabrina and Daphne's adventures continue in their hometown of New York City as they bring Puck to Faerie to cure the wounds sustained in Book Three. With the help of Granny Relda, Mr. Canis and Sheriff Hamstead, the girls must figure out who killed Puck's father, King Oberon, while navigating the warring factions of Everafters that make their homes in every neighbourhood of New York City, including the pirates of Wall Street, the Yahoos of the Lower East Side and many more. Wherever they go, they learn something new about their mother, who wasn't the sweet, average lady they remember. Their mother's name and the girls' street smarts give them an advantage over their older friends and the Sisters Grimm really come into their own as detectives. If only Sabrina can embrace her Grimm inheritance and give up her dream of being normal.