George's Secret Key シリーズ
#1 George's Secret Key to the Universe
50060語
850L
#2 George's Cosmic Treasure Hunt
52724語
880L
#3 George and the Big Bang
51162語
960L
#4 George and the Unbreakable Code
65541語
820L
#5 George and the Blue Moon
53687語
940L
#6 George and the Ship of Time
50060語
.