DOUBLE TROUBLE by CARL JACOBI Grannie Annie, that waspish science-fiction writer, was in a jam again. What with red-spot fever, talking cockatoos and flagpole trees, I was running in circles--especially since Grannie became twins every now and then. [Transcriber's Note: This etext was produced from Planet Stories Spring 1945. Extensive research did not uncover any evidence that the U.S. copyright on this publication was renewed.] We had left the offices of _Interstellar Voice_ three days ago, Earth time, and now as the immense disc of Jupiter flamed across the sky, entered the outer limits of the Baldric. Grannie Annie strode in the lead, her absurd long-skirted black dress looking as out of place in this desert as the trees. Flagpole trees. They rose straight up like enormous cat-tails, with only a melon-shaped protuberance at the top to show they were a form of vegetation. Everything else was blanketed by the sand and the powerful wind that blew from all quarters. As we reached the first of those trees, Grannie came to a halt. "This is the Baldric all right. If my calculations are right, we've hit it at its narrowest spot." Ezra Karn took a greasy pipe from his lips and spat. "It looks like the rest of this God-forsaken moon," he said, "'ceptin for them sticks." Xartal, the Martian illustrator, said nothing. He was like that, taciturn, speaking only when spoken to. He could be excused this time, however, for this was only our third day on Jupiter's Eighth Moon, and the country was still strange to us. * * * * * When Annabella C. Flowers, that renowned writer of science fiction, visiphoned me at Crater City, Mars, to meet her here, I had thought she was crazy. But Miss Flowers, known to her friends as Grannie Annie, had always been mildly crazy. If you haven't read her books, you've missed something. She's the author of _Lady of the Green Flames_, _Lady of the Runaway Planet_, _Lady of the Crimson Space-Beast_, and other works of science fiction. Blood-and-thunder as these books are, however, they have one redeeming feature--authenticity of background. Grannie Annie was the original research digger-upper, and when she laid the setting of a yarn on a star of the sixth magnitude, only a transportation-velocity of less than light could prevent her from visiting her "stage" in person. Therefore when she asked me to meet her at the landing field of _Interstellar Voice_ on Jupiter's Eighth Moon, I knew she had another novel in the state of embryo. What I didn't expect was Ezra Karn. He was an old prospector Grannie had met, and he had become so attached to the authoress he now followed her wherever she went. As for Xartal, he was a Martian and was slated to do the illustrations for Grannie's new book.