Moggie, who inspired the best-selling A Street Cat called Bob, died at the age of 14.
The recreational James Bowen took care of Bob the cat after he was found abandoned and injured in 2007, and Moggie was seen with him every day when he sold The Big Issue on the streets of London.
Hodder & Stoughton, who published the bestseller, released a statement on Tuesday confirming the cat’s death Mirror reports.
The statement read: “When James and Bob continued to find fans around the world, Bob led an incredible life by meeting well-wishers at book signings, traveling the world and coping with cat fame. He was an exceptional cat who was very much missed will be . “
James added: “Bob saved my life. It’s that simple. He gave me so much more than just camaraderie. With him at my side, I found a direction and purpose that I had missed.
“The success we have achieved through our books and films together has been wonderful. It has met thousands of people, touched millions of lives. There has never been a cat like him. And will never do it again.”
“I have a feeling that the light in my life has gone out. I will never forget it.”
James’ first book, A Street Cat Named Bob, that told the story of the couple’s sweet relationship, was published in 2012, followed by three sequels – The World After Bob, A Gift From Bob, and The Little Book From Bob.
The collection sold eight million copies in more than 40 languages.
Bob also became a movie star and appeared in the 2016 release based on the first book alongside Luke Treadaway as James. He will also appear in the sequel A Gift from Bob, due to be released later this year.
A number of homages to Bob have appeared on social media.
An angry fan typed, “No, it felt like Bob was going to live forever. Tear up your extraordinary little cat and I hope James is fine. PS, anyone who hasn’t read ‘A street cat named Bob’ please try it. it’s wonderful. “
A second added: “Such sad news that Bob walked across the Rainbow Bridge from a street cat named Bob. I feel very blessed to be able to meet him and James last year.”
A third repeated: “A street cat called Bob really touched my heart. I always wanted to meet Bob in real life, but unfortunately I never will. He was an amazing cat and he touched so many people … I hope James will be fine. Losing a loved one is never easy. RIP Bob … you were so special. “