MARY HIGGINS CLARK — $140 MILLION
Undoubtedly, one of the most popular fiction genres is thrillers. And while many have dabbled into writing such books, only few have tasted success — Mary Higgins Clark is definitely one of them. Her notable works include Aspire to the Heavens, The Cradle Will Fall, All Around the Town, We’ll Meet Again, You Belong to Me, and The Lost Years. Forty-two of her novels reached the bestsellers list. The kind of money she has earned over the years and put in her banks helped her buy a huge mansion in New Jersey.