The spaceship was changing shape all around him. The curving walls sloped inward at crazy angles, and the glassine windows bulged like giant bubbles. The floor was an unending series of little waves, and the ceiling melted to drop liquid pellets. "This is it !" exulted Grim Thorssen, slamming the levers of his control board, striving to slip his ship into the tug of the little planet looming through the starboard window. "Whatever kidnapped our trading vessels, whatever happened to the Fleet cru