Ep 4. Mirror, Mirror on the Wall

One cold wintery day, Luna notices something strange is happening in her house. Something is causing all the bathroom mirrors and windows to fog up. But what's stranger still, after Jupiter's soapy, artwork-filled bath, his drawings on the window are the only place that no longer fogs up! What's happening here? What makes the mirror fog up and what's so special about Jupiter's soapy drawings?