News of Apollo's deed would soon reach Hera, and before that happened, Zeus did not wish to provoke his Queen of Gods too much. The Divine King took a step back, and facing Hera, there was only the helpless mortal princess. From this moment on, the curtain rose on Io's half-life of suffering.
The princess of Pislatius was transformed by Zeus into a cow with his increasingly proficient Sacred Power, in order to escape Hera's gaze. But Io did not know, in fact, Zeus did not expect this to fool the other party, he was simply using this method to soothe the Heavenly Empress's fury.