In the end, a medallion that somehow kept its wearers safe from planetary consumption was thrown into the planet's core, causing D'vouran to collapse in on itself and die. But not before author John Whitman squeezed in this stomach-churning description of a planet in its death throes:
"The planet D'vouran was squirming. It wriggled and trembled as though trying to change its shape. Bright flashes of light that looked like volcanic eruptions appeared on its surface. The planet bulged outward, becoming a horribly misshapen mass. Then it collapsed in on itself, churning and swirling into a smaller and smaller lump of writing matter in space. With a final shudder, D'vouran vanished altogether."
The planet popped itself, expanded like a cartoon character that swallowed a bundle of dynamite, then basically ate itself into nonexistence. Alderaan got off easy.
Wait. Did Star Wars just rip-off Spaceballs?