All the clues were based on logic. Mary Rodgers later recalled driving up to a brownstone on East Seventy-third Street, where her team heard music wafting through the door. It was the opening phrase of “One for My Baby,” on repeat. The lyric: “It’s quarter to three, there’s no one in the place . . .” The solution: 245, which matched another address on the map. At one building, players were greeted by Perkins’s mother, who served them cake and tea. Someone was about to bite into the cake when a teammate spotted a clue written at the bottom of the teacup: “You can’t have your cake and eat it, too.” They put their cake slices together, and the solution was spelled out in icing.