To kick off discussion, I was listening to The Last of the Real Ones by Fall Out Boy while I wrote out most of this chapter of the quest plot.
It might be a bit misleading to link the lyrics, since I was listening to the song mostly for the style of the music than the lyrics (and some of the lines don't make any sense with the plot anyway), although they do have some relevance and even if it's not apparent to me I'm sure it influenced my writing subconsciously. Here's a link to the Genius page for the song.
RubyQuest and NanQuest had heavy themes of entrapment, and overall, BreachQuest is going to touch on that pretty heavily too. Physical entrapment, but also mental, emotional, and internal entrapment.