Alright, so he couldn't openly Assimilate and clear out THE Corpse Hierophant and others.
This thought buzzed in Achilles's mind as internally, he was already thinking about how THE Corpse Hierophant and the rest of them would taste.
Their recovered Surface Depths radiated with weight that made his Way of Assimilation ache with hunger!
But The Groundskeeper made the rules as of now.
This entity was many times more powerful than all of them to the point that even the thought of trying to Assimilate him gave off a sense of danger that Achilles's instincts recognized as absolute. His Way screamed that attempting to consume The Groundskeeper would result in his own immediate collapse, a calculation so certain that it didn't require testing to confirm.
So for now, he followed along.
