It wasn't the name that drew him in—it was the window. Behind the dusty glass, a model solar system hung from nearly invisible threads. But the planets weren't the usual marbles of colored glass. Uranus, a pale, shimmering blue sphere, seemed to pulse with a soft, inner light.

Leo grinned. “I’ll bring my own tuning fork.”

He was standing on a cliff of frosted methane ice, under a pale green sky. A giant, featureless blue orb—Uranus—hung above him, so close he could see the faint wisps of its storm bands. To his left, a ring of dark, narrow debris stood on end, like a vertical ferris wheel of rock and dust.