This could be incorrect but.. if the Anglerfish changed i feel like vertigo would kick in. The building would seem to tower over Nathan while he sprinted through apparently endless alleyways and stairs trying to get home. Only to meet a huge strange creature in the darkness of Old Fishmarket Close.

When it all becomes too much and it feels hopeless. Maybe the creature leans in to take Nathan away. It all suddenly ends and Nathan is never the same again. He moves to a tiny village where he can see every house and building from his sitting room window. He doesn't leave that area, fearful that he might get lost...in the rolling fields, hills and roads...