While Maria and Celaine were despairing at having no choice but to cross this living hell, Mira was actually quite excited.
Mira's favorite activities are killing and training, so naturally, she will welcome any form of training, especially body tempering.
Cultivating Qi is incredibly boring, one has to spend hours after hours of absorbing and refining Qi just for a slight advancement while tempering the body is different. One actually has to use their brain when tempering their body so they don't accidentally kill themselves. This is much more exciting than mindlessly cultivating!
Mira went ahead and took the lead and started walking upstream. She wasn't going incredibly fast since it was too hot, but she was going at a moderate pace.
Maria and Celaine also woke up and started following Mira. It's not like they had a choice and they might be rewarded something good if they survive!
***