Finally , the student wound down , and the last fragment of his Gordian puzzle hung in the air .
As the student rambled away , an indescribably funny expression fell across Mike 's face - squinting , head cocked to one side , motionless .
The student wound down , and the last fragment of his Gordian puzzle hung in the air .
As the student rambled away , an indescribably funny expression fell across Mike 's face - squinting , head cocked to one side , motionless .