'Mal-Uno! Answer me!' Theo ordered tersely. 'I can't! I'm sorry! hu hu hu!' Theo heaved a sigh. 'Mal-Uno, I thought you want us to help you? Why don't you tell us?' While speaking, he motioned with his hand the word: 'write!' Still crying, Mal-Uno spelled on the glass wall of the freezer. 'D.O.O.R.' Theo wrote beneath, 'Of?' Mal-Uno erased it hurriedly. He was shaking very badly again. 'I--m-must--g-g-go!' Mal-Uno was gone instantly. 'Trobe is his master!' Nip was sarcastic. 'Yes!' Theo touched his nose. 'I wonder... what is that door?' 'You mean, where is that door?' 'The door must be big and heavy,' Theo continued. 'But the door is not our immediate concern.' Nip walked around restlessly. 'What if Trobe didn't find our proposal?' 'We'll think of another plan?' Theo replied.