It was only possible because the defense systems of the massive Floating Island had long been deactivated.
The Digestor could have spawned anywhere, but chance had it that it was born precisely at the junction where the Aether waves emitted by these three powerful Evolvers intersected.
An amorphous mass, silver and partially translucent, trickled down from an invisible singularity about a meter off the ground and streamed out into a long, sticky stem that stretched out to plop to the ground. A puddle resembling a large drop of water contaminated with heavy metals spread quickly, then suddenly condensed, manifesting all the embryonic stages of an alien fetus in fast forward.