Mindle was curious about how Toz had found the door when she couldn't sense anything, even after Toz pointed it out. But he just answered that he would explain later. The clone and the mana vision it granted him wasn't something that Mindle would understand with just a few words.
Mindle understood it was something complicated and that now wasn't the time for something like that, so she restrained her curiosity and prepared her magic. After opening the door, they might run into guards or something, so they had to be ready. And since Toz had broken out of his cell all on his own and then smashed open eight others, Mindle decided it was her turn to contribute.
Toz had used up some of his mana and mental strength, but he was far from being too weak to participate in any fighting, but he didn't refuse Mindle's consideration and happily let her take the lead while he pushed open the door.
