It's possible you've misremembered the name or there's a typo. To help me find the author you're thinking of, could you please provide:
* Any other details about the author or their work: Do you remember the genre of their books? A specific book title? Any other information about the author's background or writing style?
* Any possible variations of the name: Did the author have a different name that was similar to "Isaacsen-Bright"?
With more information, I can better assist you in finding the author and their works.