That was a little hard to follow. I liked the initial use of the tag word in the negative, as most people went with describing some large expance of open space and potential.

Suitably claustrophobic and continuing the Hellenic theme of previous installments (ichor isn’t a word that one comes across very often); also, extra points are awarded for the The telephones still wring me.

It was a bit of a stretch to add “pilot,” but I tried to sort of post-justify the allusion to the glass box as a cockpit in the sequel.