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A month had passed since Roz left the island. According to her calculations, she had traveled hundreds of miles, but she still had hundreds more to go. The tireless robot continued north, on and on, toward the waters where the Ancient Shark roamed. If you travel far enough north, you’ll reach an area where the sun never sets in summer. And Roz had traveled far enough north. Up at the surface, there was constant daylight, all day, every day, until autumn. However, our robot was at a depth below the reach of the sun. And yet there were occasional glimmers. Certain deep-sea fish had glowing fins, while others had glowing teeth, and still others had spindly glowing lures that dangled from their heads. Jellyfish came in every shape imaginable, and many of them gave off a ghostly light. Most gleaming creatures kept their distance. Roz would see a flicker, and as her headlights swept toward it, the creature vanished into the murky haze. She was marching down a long slope that descended to the deepest trenches of the ocean when she felt her Survival Instincts tingling. The weight of all the water above was becoming too great. If she went much deeper, she’d be crushed from the pressure. So Roz stopped marching downhill and started swimming at a safer depth, and the ocean floor quickly faded from view. The robot’s limbs paddled automatically, which left her mind free to wander. Specks of debris floated all around, like a gentle snowfall, and suddenly she was recalling the snowfalls she’d experienced on land. She thought
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