It's a noisy night in this city building! The residents of each floor can hear their neighbors above them, and are wondering what's going on above their heads. Climb floor by floor and page by page to find out whose singing, dancing, cheering, and cooing are keeping a grumpy old man awake.With innovative split-level spreads that offer the feeling of climbing an apartment building floor by floor, this clever and colorful collaboration between New York Times-bestselling author Mac Barnett and gifted illustrator Brian Biggs offers an irresistible investigation of one noisy night.