It erupted from the surface first at the equator, then proceeded to rip a gash in the sea that spread up and down the meridian with immense velocity. The object could hardly be observed at first for all the water draining from it, plunging in multiple Niagaras back into the sea and hurling up a storm front of spray that rose higher than the structure itself. But in a minute the Gnomon became visible. Kathree had to back away to get a picture of the whole length of it. She extended her left hand and made a counterclockwise knob-twiddling gesture, reducing the volume of the Kyoto Philharmonic’s brass section before the bass trombones and kettledrums imploded her skull.