The watchman smiled extremely widely and then laughed very loudly. So this was the intruder. What a surprise. He had seen this particular person on several occasions in the university, walking around so confidently as if at home. In fact, he knew this face surprisingly well. This was the person he had seen coming out of Professor Walker's office at the end of term. He had wondered about that. After all, Professor Walker had been attending a conference overseas. However, he had come back pretty quickly when he had heard that the language department was to be amalgamated with the drama department.