Explore "Harwood's Vortex" by Robert Silverberg on Textopian. Read with annotations and highlights.
Imagine walking up a street and having the sky literally burst open over your head; imagine invaders pouring down and you have --
The vortex bubbled up out of nowhere, hung shimmering in the air in front of me, glistened and gleamed brightly. There was a whirlpool of twisting currents in the air, and I wavered dizzily for a second or two while the Invaders poured through the newly-created gulf.