Description:BACK TO THE WORLD OF OPAL When Doctor Jack Odin disappeared down that dark cave in Texas, I was sure I would never hear from my friend again, or hear about his stories of the World of Opal. But then, one night as I was contemplating that strange world and Jack, and both hands on my clock were pointing up toward the stars -- I had strange visitors. Voices and images came to me like flame-winged butterflies. I recognized them. They were Ato and Wolden from Jack's World of Opal, transcending Time and Space. And they had brought me back Jack's latest scrawled notes and messages. It took me months to piece Jack's material together, but finally I can produce Doctor Jack Odin's story of the dwarves called Neeblings, and his beautiful and beloved lady Maya and of the Nebula spaceship, able to fly through Transeinsteinian space. Yes, and of the evil Grim Hagen and his destructive goals. Here, then, is color and adventure and wonder . . . Messages from the World of Opal to Earth!