Fifty millions miles apart, and no way to bridge the gap, no way to return my body and my...

John Carter: Fifty millions miles apart, and no way to bridge the gap, no way to return my body and my soul to their true home. Like a fool I'd thrown away my medallion. Then I recalled Matai Shang, his knowledge of earth, of my history. It mean Therns were a presence on this world, the cave in Arizona was proof. There might be other such proofs, other Thern way stations hidden all around the world. I knew now what the cave of gold must be used for. So for ten bitter years I searched, on the trail of rumor and legend, I fared it out every possible evidence of Therns, but I found no medallion. And then it came to me. And once it came, there were many plans I had to make in secret. I could trust no one else. I had long suspected that the Therns were following my movements. Now you'll understand the cause of my sudden death. The reason for my bizarre funeral instructions. Why the door can only be opened from the inside. For if my body dies on earth, then my copy dies on Mars. You are the key, this is the task I entrust to you along with all my fortune. Protect my body, the Therns will attempt to destroy it. In the time it has taken you to read these pages, they may have already done so.