Lights came on around the stage, some of them built into the surface of 
the stage itself and some hidden in the machinery around it. To Princess Nell's 
surprise, a seemingly three-dimensional shape of light began to coalesce in the 
center of the empty stage. It gradually formed itself into a head, which took 
on additional details as the machinery thundered and hissed away: it was an old 
bald man with a long white beard, his face deeply furrowed in thought. After a 
few moments, the beard exploded into a flock of white birds and the head turned 
into a craggy mountain, the white birds swarming about it, and then the 
mountain erupted in orange lava that gradually filled up the entire volume of 
the stage until it was a solid glowing cube of orange light. In this fashion 
did one image merge into another, most astonishingly, for several minutes, and 
all the time the machinery was screaming away and making Princess Nell most 
anxious, and she suspected that if she had not seen less sophisticated machines 
at work at Castle Turing, she might have turned around and fled.