[音频] Stephen and Lucy Hawking 的GEORGE系列的第二本，GEORGE'S COSMIC TREASURE HUNT

论坛有第一本 GEORGE'S SECRET KEY TO UNIVER,

目前还缺第三本　GEORGE AND THE BIG BANG, 希望热心人上传共享

现在又出了第四本　George and the Unbreakable Code

• George's Secret Key to the Universe, (Random House, 2007) ISBN 978-0-385-61270-8
• George's Cosmic Treasure Hunt, (Simon & Schuster Children's Publishing, 2009) ISBN 978-1-4169-8671-3
• George and the Big Bang, (Doubleday, 2011) ISBN 978-0-385-61191-6
• George and the Unbreakable Code, (Doubleday, 2014) ISBN 978-0-857-53325-8
  

George's Cosmic Treasure Hunt is a 2009 children's book written by Stephen and Lucy Hawking. George and Annie, the middle-school cosmologists, return in this sequel to the 2007 story, George's Secret Key to the Universe. The book was followed by George and the Big Bang in 2011.