Ainz - Toxic Gas, No Problem

There were holes that spewed volcanic gasses at fixed intervals. And there were pockets of gas here and there, too. In other words, this area was filled with invisible but nonetheless deadly poison.

There were multiple routes to the exit, but only one route could be taken without encountering any of the gas, and even that one had pockets of it depending on the timing.

Even if Ainz’s party used Fly, the way they had for the other Impasses, and flew along the ceiling, there were times when the airborne gas reached that high. The only way they could manage with Fly was hope they didn’t run into any pockets of toxic gas.

However…

Ainz’s people all had protections against noxious air. In other words, the only one who could be affected by the gas was Gondo. Undead had natural resistance, so unless it was a gas that dealt acid or fire damage, they were fine. Aura had a magic item that enveloped her in a bubble of fresh air for her to breathe, meaning she was immune as well.

All Ainz had to do was cast a spell to protect Gondo, allowing the whole party to pass through the poisonous air unhindered.

***

Volume 11, Chapter 5.2