"If you’ve never heard of Warriors of Mars, let alone seen a copy, there’s a good reason for that. There was, so far as I know, only one print run of the book before the Edgar Rice Burroughs estate contacted TSR about possible infringement of their rights. Rather than risk legal action, the book was never reprinted, making it today one of the rarest — and most expensive — TSR products.” —Grognardia

"If you’ve never heard of Warriors of Mars, let alone seen a copy, there’s a good reason for that. There was, so far as I know, only one print run of the book before the Edgar Rice Burroughs estate contacted TSR about possible infringement of their rights. Rather than risk legal action, the book was never reprinted, making it today one of the rarest — and most expensive — TSR products.” —Grognardia