Heidi knew she was out of line, but not knowing what had happened and stewing over it w2as driving her insane and she needed to take it out on something since she didn't have any drink.
Hearing Katie's reasoning, Heidi calmed down a little. Looking at the older girl, she spoke in a strained voice. "It's the only explanation I can think of Katie."
"How can no one be lying?" Heidi said, her anger temporarily stated barely by Katie's suggestion. "How are we going to get our hands on a pensive?"