On a sunny morning in May, the feet of the eleven-and-a-half-year-old Pete Peterson bumped into the end of the bed, when he wanted to stretch them.
'What the dickens?' he groaned in an unusual, deep tone of voice, "Did my bed become shorter last night? I must be dreaming.'
But Pete wasn't dreaming. From below his blanket, two huge feet strained against the board. Two ugly, hairy feet. Peter Peterson, also known as Pete, has grown adult in a single night. He's become exactly like his father. And wonders do not end here! For if Pete has moved into his father's body, then what has happened to his father, Dr. Adam Peterson? Yes, he's become a child, and he had to go to school again...
The exciting and joyful novel won the 'Hungarian Children's Book of the Year' prize in 2000. (IBBY)