(CNN)Shin Dong-hyuk's horrific descriptions of his time in a North Korean prison camp became a best-selling book, made him a key witness before the United Nations and grabbed headlines around the world. 

He was one of the most high-profile North Korean defectors, winning several human rights awards and inspiring a documentary as his memoir was translated into 27 languages. 

Now the publisher of the book and its author say Shin -- who claims to have been born in and escaped from a North Korean prison camp -- has revealed that parts of the story he told weren't true. Shin may have spent most of his life in North Korea at a different prison camp, rather than the total control zone that formed the title of his biography. 

Shin's accounts of his time in the gulag have been widely reported in interviews with media including CNN. He also wrote an opinion piece describing his experiences for CNN Digital. 

Don't discount N. Korean stories after defector's recanting, advocates say 

Blaine Harden, author of the book "Escape from Camp 14," said in a statement on his website over the weekend that Shin had changed "key parts of his story." 

"On Friday, Jan. 16, I learned that Shin Dong-hyuk, the North Korean prison camp survivor who is the subject of 'Escape from Camp 14,' had told friends an account of his life that differed substantially from my book," Harden said. "I contacted Shin, pressing him to detail the changes and explain why he had misled me."  QUESTIONS:

Q1:
1. What is described by Shin Dong-hyuk in the story?
2. What is described in the book written by Shin Dong-hyuk?
3. 
Q2:
1. What is the location of the camp that Shin Dong-hyuk talks about?
2. Shin Dong-hyuk talks about a camp that is located in which country?
3. 
Q3:
1. Where can the testimonies of Shin Dong-hyuk be found?
2. Where did Shin Dong-hyuk write his descriptions?
3. 
Q4:
1. In what way did the bestselling book by Shin Dong-hyuk elevate his stature?
2. Shin Dong-hyuk stature was elevated in what way thanks to his bestselling book?
3. 
Q5:
1. What is Shin Dong-hyuk known for?
2. What is the status for which Shin Dong-hyuk is known for?
3. 
Q6:
1. Shin Dong-hyuk's book is written in how many languages?
2. What is the total number of languages that Shin Dong-hyuk's book has been translated into?
3. 
Q7:
1. What kind of awards did Shin Dong-hyuk win?
2. What kinds of awards were won by Shin Dong-hyuk?
3. 
Q8:
1. What is the name of the country where Shin Dong-hyuk was born?
2. Shin Dong-hyuk was born in which country?
3. 
Q9:
1. What is the location from which Shin Dong-hyuk escaped from?
2. From which location did Shin Dong-hyuk escape?
3. 
Q10:
1. Was the story written in the book the same as the story that Shin Dong-hyuk told his friends?
2. Were Shin Dong-hyuk's friends told the same story as the one that was written in the book?
3. 
