Book List in Order: 6 titles


  • George travels to the future in the epic conclusion of the George’s Secret Key series from Lucy Hawking. When George finds a way to escape the spacecraft Artemis, where he has been trapped, he is overjoyed. Surely now he can return to Earth. ...



  • George and Annie are off on another cosmic adventure inspired by the Mars Expedition in the fifth book of the George’s Secret Key series from Stephen and Lucy Hawking. George and his best friend, Annie, have been selected as junior astronauts fo...



  • George and Annie are off on another cosmic adventure to figure out why strange things are happening on Earth in the fourth book of the George’s Secret Key series from Stephen and Lucy Hawking. George and his best friend Annie haven’t had any s...



  • Explore how the universe began -- and thwart evil along the way -- in this cosmic adventure from Stephen and Lucy Hawking that includes a graphic novel. George has problems. He has twin baby sisters at home who demand his parents’ attention. His...



  • George is heartbroken when he learns that his friend Annie and her father are moving to the US. Eric has a new job working for the space program, looking for signs of life in the Universe. Eric leaves George with a gift -- a book called The User's Gu...



  • "Welcome," said Cosmos, "to the Universe!" When George's pet pig breaks through the fence into the yard next door, George meets his new neighbors -- Annie and her scientist father, Eric -- and discovers a secret key that opens up a whole new way o...





Complete Series List in Order

George's Secret Key

1) George's Secret Key to the Universe (Nov-2007)
2) George's Cosmic Treasure Hunt (May-2009)
3) George and the Big Bang (Sep-2012)
4) George and the Unbreakable Code (Sep-2016)
5) George and the Blue Moon (Nov-2017)
6) George and the Ship of Time (May-2018)