Ellie and her brother Oleg are looking forward to a day without their parents and little sister. In their new home, they manage just fine on their own, even without a phone. But when their parents don't return, the two start to feel uneasy. What is going on? Where are the parents? With courage and confidence, Ellie and Oleg try to cope with the situation. At home and quite alone - two mismatched siblings and a big adventure. Featuring many illustrations by Heike Herold.