Heidi watched things unfold, quickly noticing that Shawn was losing control. The plan wasn't going to work! She jumped back into the building but that's when the explosion happened, catching Heidi and propelling her into the wall. Dazed, she slowly got to her feet. The mutant had escaped, down this hole in the floor was the only possible explanation. Some of her questions were answered, at least. This mutant could absorb energy, meaning that he'd be pretty charged up right now. Any pursuit would be suicide. She ran over to Shawn. For all her logic and her calculations and planning, in the end she'd chosen to put trust in the abilities of another, and it didn't pay off. 

Booker and Emma had now entered the building. Heidi raised her hand as she reached Shawn. "I'm okay, but I think Shawn's hurt. He tried to do more than he could!"