Koishi sort of paused, turning a little bit to look at Rose. She tilted her head. "Black hole? We have a subterranean sun but no black holes. That would be bad. Then the heat and light wouldn't be able to escape and old hell would be even more chilly and dark."

This was a different hell after all. One that doesn't contain a slightly disappointing rawr monster after building it up so beautifully the episode before.

"It's this way!" Koishi was dragging her faster now, heading toward the entrance to the waterways. "We have to go through some tunnels. That's where the subarchway is so fewer people bother big sis. She gets headaches really easily in crowds if I'm not there to block some of the psychic noise."