Heidi was quiet in thought as she followed Shawn and Chrys back, got into the Blackbird, and strapped in. It wasn't until Chrys and the new kid started talking that she snapped out of her trance. "Would you two relax? They wouldn't send a bunch of young first-timers who haven't even mastered control to anywhere actually dangerous. We're just guarding a bank, and it's probably one of the banks least likely to be hit," she reassured, though not even fully convincing herself. There were a myriad of possibilities for this ensemble being called to this mission, though no notions she actually wanted to entertain even for a second.
In truth, Heidi was scared. She may be a living supercomputer with a body far fitter than the average woman five years older than her, but she was still a timid fifteen year old girl emotionally. Breaking down in tears would have a negative impact on the state of mind of the rest of them, and that thought was all that was stopping her from breaking down. She was heading into the genuinely unknown and it could be life-threateningly dangerous. She didn't want to die...
Despite all this going on inside her head, her exterior was as silent, stoic and reserved as ever.