Tim tried frantically to fit the tiny key into the box but it was no good. His giant fingers were too big and clumsy. He fumbled and dropped the box - and in his cramped state was unable to pick it up!
Very soon he outgrew the room, and burst up through the floor to the upstairs! His hands and feet burst through the doors and windows as he filled the pre-fab. Just as Tim thought he was going to outgrow his home, he stopped growing.
"Now what?" he groaned, unable to move.