three o'clock
`` That can be easily managed , '' said the cuckoo ; `` but -- excuse me for an instant , '' he exclaimed suddenly . He gave a spring forward and disappeared . Then Griselda heard his voice outside the doors , `` Cuckoo , cuckoo , cuckoo . '' It was three o'clock . The doors opened again to let him through , and he re-settled himself on his chair . `` As I was saying , '' he went on , `` nothing could be easier . But that palace , as you call it , has an entrance on the other side , as well as the one you know . ''