I can't add to or disagree with any of the comments so far...the best chapter yet, now...the obvious part...
All we know at the moment is that, from a physical standpoint, Jack has several superficial cuts...I have to expect that the scars on his back and elsewhere are courtesy of his parents, and become part of his official medical record.
Having said that, as Jack's treatment stabilizes, with this documentation, Jack's parents will be forced to account for their actions...
As much as the last chapter was meh for me, this one was the polar opposite.
Shouldn't the next chapter be out by now?