Undergloom is the episode where desire horror earns its name most completely. The three women in the depths of the ship aren’t being overcome. They’re arriving. Sarah has been the careful one for eight episodes and she stops being careful here not because the machinery broke her down but because she finally decided the caution wasn’t worth what it cost. Mairead has been chasing dissolution since she first appeared and she finds it here on her own terms. Emma has been the most mysterious figure in the arc and Undergloom resolves her: she was always the bridge, always more than a passenger, always the hinge the summoning turns on.

The horror isn’t in the ecstasy. The horror is in the comodification logic: every moment of their genuine transcendence has been captured. The recording equipment was running. The neural feeds were streaming. Alistair already knows what subscriptions will look like. The Old Ones get their rite and Vale Four gets its content and the women in the lotus get something real.