"No," answered Gretel. "That would be too heavy for the duckling. It should take us across one at a time."
That is what the good animal did, and when they were safely on the other side and had walked on a little while, the woods grew more and more familiar to them. Finally, they saw the father's house in the distance. They began to run, rushed inside, and threw their arms around the father's neck.
The man had not had even one happy hour since he had left the children in the woods. However, the woman had died.
They showed the woodcutter the magic rocks. They did many wonderful things and performed witchcraft beyond plausible reality. But the more the family used them for their own good, the more everything started to stick. Soon, they would be thrust into a crazy plane of existence that was not there and had nothing of familiarity or logical reasoning.
In short, when using witchcraft read the manual or you'll completely go insane.