In fact the traffic policemen interested Sunny Boy so much that he taught the children on his street to play a game called "City" when he came home from New York, and in this game Sunny Boy was always a policeman. You may have read of how he played "City" in the fourth book about him called "Sunny Boy In School and Out." It was in this book, too, that Sunny Boy made the acquaintance of the big policeman whom he had seen at the skating pond. Sunny Boy thought of this big policeman as soon as he was safely on shore and as soon as he said perhaps his grandpa was drowned and the big boy had told him no one was drowned--"some of 'em may have been walked on a little, but no one is drowned, I tell you," he said earnestly. Sunny Boy wished he could find this kind man in the blue uniform who might be able to help him find his grandfather. "Where's the policeman?" he asked, pulling at the big boy's ragged sleeve. "What you want the police for?" asked the boy, looking at Sunny Boy queerly. "Do you want them to chase you?" "This policeman won't chase me," said Sunny Boy sturdily. "He is a friend of mine and I like him. Come on and let's hunt for him." He started to walk higher up the bank and almost fell down. "Why, I have my skates on!" he cried, in surprise, for he had forgotten them. "I guess I'd better take them off." He turned to ask the big boy to help him, and he wasn't there! He wasn't anywhere, for Sunny Boy looked all around. The other boy had disappeared as though he had tumbled into the lake, though Sunny Boy was sure he hadn't done that. "Oh, dear, I wish he had waited," mourned Sunny Boy, sitting down to take off his skates. "I wanted to tell Grandpa about him, and now he's gone." The skate straps were swollen with water and stiff and cold. Sunny Boy worked at them till his poor little fingers were blue, but he could not unfasten them. So Sunny Boy was ready to cry with cold and disappointment and loneliness when a man spoke to him. It is not strange that a little boy should feel like crying when he has lost his grandpa and his feet are wet and his hands are so cold they ache. "Are you lost, little boy?" he asked. He was a short man, and he stared at Sunny Boy so hard through round, black-rimmed Spectacles that the little boy felt rather uncomfortable. "No, thank you, I'm not lost," he answered politely. "But my grandpa is. I can't find him anywhere." "Well, well, you don't tell me!" replied the man eagerly. "Why, I heard a grandfather saying back there in the crowd that he was looking for his little grandson. Come along and I'll help you find him." The short man was very kind, for he knelt down and unbuckled the stubborn skate straps and tied them over Sunny Boy's arm. Then he took his hand and led him back into the crowd up to a worried-looking old gentleman.