"What are you doing?" an angry sounding voice demanded.
Arthur looked around again, but there was still nobody there. He had been trying to study history, but strange voices kept interrupting, and he couldn't concentrate.
"Close the window," another voice ordered. This voice was older sounding, musical and not quite human.
Arthur looked up at his school, the Chaco Academy, which was the closest building. It was a huge golden tower not far away, but it was too far away for him to hear anything from there. He looked around at the other towers in the distance, but they were even farther away. Many of the towers in Anasazi City were the same silvery gold color as his school, but others were different colors. Many of the towers were the same height as his school, about 200 stories high, and some were shorter, but a few reached a thousand stories into the sky, right to the edge of outer space. All the towers had the same design: a gigantic round tower, with a three-cornered pyramid at the bottom, and a flat round landing pad on the top. The building design was common in Anasazi Province, and almost all buildings in the province were built with the same design. Anasazi province was one of the Mars Federation's one hundred provinces. Between the towers were the sprawling green parks of Anasazi City, above which flew streams of hover-cars. Arthur looked back to his school...