With only the professional faculties still in session, the quadrangles and shaded paths of the University of Toronto campus would normally have been deserted by the beginning of May, particularly on a Friday evening. That the largest of the open spaces was not, served to vindicate the judgement of the organizers of the Second International Celtic Conference. In adapting their timing to suit certain prominent speakers, the conference administrators had run the risk that a good portion of their potential audience would have left for the summer by the time they got under way.

At the brightly lit entrance to Convocation Hall, the besieged security guards might have wished this to be the case. An astonishing crowd of students and academics, bustling like a rock audience with pre-concert excitement, had gathered to hear the man for whom, principally, the late starting date had been arranged. Lorenzo Marcus was speaking and chairing a panel that night in the first public appearance ever for the reclusive genius, and it was going to be standing room only in the august precincts of the domed auditorium.

The guards searched out forbidden tape recorders and waved ticket-holders through with expressions benevolent or inimical, as their natures dictated. Bathed in the bright spill of light and pressed by the milling crowd, they did not see the dark figure that crouched in the shadows of the porch, just beyond the farthest circle of the lights.

For a moment the hidden creature observed the crowd, then it turned, swiftly and quite silently, and slipped around the side of the building. There, where the darkness was almost complete, it looked once over its shoulder and then, with unnatural agility, began to climb hand over hand up the outer wall of Convocation Hall.