I have this comic as it was released in graphic novel form – “The Life and Times of Scrooge McDuck Companion”

Here are some quotes from the author Don Rosa (he had writings after each story about his making them) about this comic in particular:

“For one thing, it’s the first story I’ve ever done that is based on an idea given to me by a Duckfan!”

Then he goes on to talk about how this is usually discouraged for various reasons including that “The sad truth is that any idea that is sent unsolicited to any writer or TV series or movie studio, etc., legally becomes the recipient’s property -it can be used without any payment of credit given the sender”

And here’s one last quote at the end of his writings on this comic:

“Then, some years after I did this story, I happened to catch a movie on the tube called “The Cell”- it was an action-adventure about a psychotherapist who uses a revolutionary new machine which allows her mind to enter the mind of a patient to obtain needed info while she participates and interacts with the subject’s thoughts. Upon checking, I saw that this movie opened about one month before the helpful fan sent me that great story idea. A coincidence? Maybe. I hope so!”