Kent and Crimson Dagger spent quite some time together learning more about Planet Brymrr. After he had revealed all he knew, they proceeded to discuss the mission he had given the Midnight Shadows.
He made sure Crimson Dagger understood the importance of such a mission.
From all he knew, every Era has its own danger. The Primordial Era brought its dangers, and so did the Divine Era. This means this Era will also bring its dangers, so the remnants of the past must be handled.
This means the Void Beasts, Spatial Beasts, and now the Dark Creatures must be taken care of before the danger meant for this Era arrives.
If they had to face several enemies at the same time, then his years of preparation would all be for nothing.
So he gave this mission to the Midnight Shadows.
Of course, he planned to add the Night Riders to it, since just as there are remnants of the Dark Creatures, there are also the Shadow Beings who appeared during the Shadow Era.
