The Iridium Star people had gone to great lengths, expending a tremendous amount of energy and resources to find the second Swarm's hiding place, yet they still had no clue. This was because the Swarm didn't truly exist within the physical space of the Galaxy, but rather in a Subspace world similar to the Pilgrims' illusory space.
Although this Subspace world was incomplete in itself, it was still capable of accommodating large numbers of Insectoids for survival. What was even more unexpected was that the space itself was an Insectoid, to be precise, a Swarm Duke.
The second Swarm's Duke of the Garden, in fact, was the third Duke to emerge within the Swarm, but this Duke had never directly communicated with other Insectoids since gaining self-awareness. Its physical form was extremely small, like a pebble, and even looked like an ordinary rock, drifting through the Universe, sticking to comets, hence its position was ever-changing.