3A
   [ Step Into Reading 4 ] The Fly on the Ceiling
   Dr. Julie Glass
   Random House
   Paperback + CD
   48
   9500
Rene Descartes는 정리를 잘 하지 못하는 성격 탓에 늘, 무언가 잃어버립니다. 그러던 어느 날, 우연히 천장에 앉은 파리를 보고 그 유명한 '평행좌표'를 만들게 됩니다.