"She won't know where I am. I must go home." Just then the horses stopped before some big gates. A dog with three heads stood beside the gates. Proserpine cried out when he growled. His growls were very loud, for they came from all three mouths. Pluto spoke and the dog was quiet.

Only two of his eyes closed at a time. The other ninety-eight stayed open. Io went from place to place. His terrible eyes watched her day and night. High on Olympus, Jupiter thought about Io. He felt sorry for her. "After all, it is my fault," he said. "Juno punished her because I said she was beautiful. I must help her. But how?"

Only two of his eyes closed at a time. The other ninety-eight stayed open. Io went from place to place. Argus was always near by. His terrible eyes watched her day and night. High on Olympus, Jupiter thought about Io. He felt sorry for her. "After all, it is my fault," he said. "Juno punished her because I said she was beautiful. I must help her. But how?"