Grumpy Mr. Rock finally wants to have some peace and quiet. Therefore, he decides to build a castle with thick walls. But he can't do it alone. Reluctantly, he seeks help from Mrs. Tasar, the architect, who advises him to have large windows, Mr. Batir, the contractor, who suggests colorful paint for the walls, and many others. In the end, everything turns out quite differently than Mr. Rock had imagined. This elaborately designed picture book delights both young and old with its lovingly detailed, generous illustrations in bright colors. Additionally, it features a wonderful story with a valuable message for our time: Those who hide away and shut their doors to others have little to laugh about; only togetherness brings color to our lives!.