Robin moves to the city with her parents. Everything there is gray – building facades, people, even flowers. Robin sets out in search of color and uncovers a conspiracy: behind all the gray is the faceless Gray GmbH & Co. KG. Thanks to her knack for problem-solving and some allies, Robin makes her way to the control center of the corporation and turns all the color dials to vibrant. In the end, only her cat remains gray. Since the success of his mouse adventures, Torben Kuhlmann has been known for great picture book artistry. With "The Gray City," he soars to new heights and makes a statement for colorfulness and diversity.