[Coldsaturn]

Put a pin on how Isaiah is acting, how it seems to be affecting his personality and memories (Jer mentions explicitly that he's lost memories).

"It's Xavier. He's running. To me. He stops in front of me. It is only then that I notice the wounds on his hands and face. Catching his breath, he holds out his hand, showing me a small, glowing Protocore. This is the first time he's looked at me with desperation in his eyes. When he moves closer, I notice a ring of light around his neck. It's a striking, suffocating red.
"...Did you exchange your freedom for this?""