After obtaining the Blood Aura technique and learning it, Kent's next focus was on merging it with the Claw Aura.
However, in order to do that, he had to go through Chaos's memories, which he had scribbled on the large door bounded by the thick chain.
Though he had the Primal Core Formation Diagram, which was technically Bhaal's approval to obtain everything he owned, he still had to break the chain to acquire the Primal Body Tempering art.
But according to Chaos, merging the Claw Aura with the Blood Aura, forming the Blood Claw Aura, is the only way he would be able to break the chain.
So Kent delved deeply into reading every last thing Chaos wrote. By the time he was done, it was as if he were the one who had written them.
They became a part of him, just like whenever he finished reading a Memory diary.
"Though he is hateful sometimes, he did indeed create something very great. However, now that I am here, I will make it even more grand."
