Read The Awesome Fan Letter 'Game of Thrones' Author George R.R. Martin Wrote To Marvel When He Was 15

So much so that, in 1963, then 15-year-old Martin wrote a letter to Marvel complimenting Fantastic Four #17, saying the issue was "absolutely stupendous" and that he found it impossible to even describe it.

The letter was addressed to Stan Lee and Jack Kirby, Marvel's co-creators.

Marvel responded to the young Martin's letter, writing below it: "We might as well quit while we're ahead. Thanks for your kind words, George."

Martin would later go on to tell Rolling Stone that letters like the one he sent to Marvel helped him get into writing, saying:

Marvel recently posted Martin's original 1963 letter to their site. Check it out below: