Drakador_Chaos
The Darkness have been watching. They know what this Cosmolord is. They have no reason to attack Cosmolord over any of the other races inhabiting the Cosmos.
The Darkness cannot be controlled and do not like being ordered to do something. They would not benefit from attacking Cosmolord.
The Darkness scan the location where the ship had been, the dark technology of their scanners can detect any distortion in the fabric of space-time, allowing them to detect and trace not only FTL trails, but also teleportation, trans-dimensional jumps, temporal shifts, portals, etc.