I’m gonna pretend I understood what was going on in this chapter

Turns out that uncle wasn't the one sending the letter and that Mr A disappeared bc he himself caught the virus and is on the run (probably bc he doesn't want to become human livestock himself??)

Also little A is now officially confirmed to be neurodivergent and his parents seem to have kept him away from any human interaction bc he "wasn't normal" and tried to send him to therapy to fix him.