Jake was taken aback, but he did give the question some serious thought. So far all he knew about them was that the Digestors came from outside the Mirror Universe, that they were attracted to areas of high Aether density, and that they could also spawn from the Aether in the atmosphere without any prior warning.
The closest analogy he could make was that of a virus destroying and spoiling everything in its path, or that of a fungus spore hatching anywhere after it had been sufficiently nourished. Of course, there were no spores and no visible contamination, making this plague virtually impossible to overcome.
The war against the Digestors dated back to the creation of System A0 probably trillions of years ago and what he was sure of was that the invasion of these aliens had never stopped and the Oracle had always been on the defensive this whole time.
Edit non priv readers:
Sorry for the missed releases last week. I will finish the work much earlier this week so there should be no irregular releases.