There once was a couple, a husband and wife, who were so poor they could barely manage to feed themselves. Though starving and without any wealth, they still longed for a child. They knew that, could they have a child, they'd be able to care for it despite hardly being able to care for themselves. Then, one day, the husband was digging out tree stumps when he came across the child they'd wanted for so long... a small root, shaped vaguely like an infant. Otesánek. After cutting some extraneous bits off with his axe, it was 'perfect'-- it had arms and legs, a head, a body, the only thing it lacked was a voice with which to cry. The husband declared Otesánek to be the son they'd been praying for, and brought him home to show his wife. The wife was elated, and dressed the 'boy' in swaddling clothes. As she rocked and sung to the 'baby', she made it a promise: "When you awake, my little boy, I will boil you some food."
Otesánek promptly woke up.
He cried out "Mother, I want something to eat!" His mother was so happy that she immediately went and made him food, more than any baby would need, and brought it to her new son. Otesánek ate it all. Yet still, he was hungry. "Mother, I want something to eat!" The woman reasoned, that as he'd only just come to life, he must be hungrier than a normal child would be. That would explain it. So she went and borrowed some food from a neighbor, which Otesánek ate just as quickly as the first meal, and still he screamed for more.
She was wondering how he could stomach so much, but still she wanted nothing more than to please her son. So, she went and got some bread, then left it on the table as she turned to prepare some soup. Otesánek left his crib and, growing too large to fit in his swaddling clothes, stripped down as he swallowed the loaf of bread whole. Again, he screamed "Mother, I want something to eat!"
She returned to find the bread missing. "Otesánek, surely you have not eaten the loaf of bread?"
"Yes, mother," answered Otesánek; "I have eaten it, and now will eat you too."
And so he swallowed her whole.
Soon, his father returned, surprised to see Otesánek having grown to the size of an oven. He wondered aloud where his wife had gone, and was told the truth by Otesánek. "I've eaten her, and now it is your turn." The father was swallowed whole. Still, though, Otesánek was hungry, and left their home to eat more in the village. Children, livestock, crops, none were safe from his ravenous gluttony. Until, however, he came upon an old woman tending to her cabbages. He ate the cabbages, then tried to eat her too. She wouldn't have any of that, however, and struck at him with her mattock, cutting his stomach open and killing him. Out poured all the food he'd eaten, from the bread to the people, as good as new. From that day on, the husband and wife never wished for a child again.