She turned her attention back to Hannah, her gaze fixating on her hearing aids for a few seconds. "Have you—"
"Isaac's back."
Lacy blinked in shock. Hannah's lips clamped shut. "I know," she said abruptly, clearing her throat. "I-I saw him earlier. . .in the hallway. M-My dad had called me. . ." She hears Stiles's voice in her head. Isaac was accused of murder. . .murdering his father. He was arrested. "Did you know?"
Hannah's jaw clicked. "Yeah. It happened a few weeks ago. It was, uh, crazy," she explained and tucked her hands into tight, uncomfortable fists on the table. "Your dad didn't tell you?"
"No," Lacy answered, frowning slightly. Her gaze unconsciously turned at the back of Lydia's head. "He hadn't told me a lot of things, apparently."
At the same time, Scott and Stiles and Erica and Issac walked into the chemistry lab. Lacy flinched when the four of them darted toward Lydia at the same time, Scott and Stiles ultimately getting to her first and they sat on either side of her. 
"Jesus, what's up with them?" Hannah questioned as she observed the angry looks on Erica and Isaac's faces when they went to sit down at different desks.
"I couldn't tell you," Lacy muttered.
Stiles rubbed the back of his neck and he peered over his shoulder. He sent her a tight lipped smile, to which she returned.
Hannah caught Isaac's wondering eye and the two of them stared at each other, the girl watching him clench his jaw and she broke eye contact first, now wishing she hadn't shown up to class at all.
Lacy noticed the short interaction and she felt her heart rate spike. "Does he know?" She whispered.
She flinched at how sharply Hannah looked her way, almost glaring. "No, and I'm not telling him either," she responded harshly while keeping her voice quiet like she was afraid of anybody hearing her. "Neither should you."
There was no anger in her eyes. No, she shadow that gleamed inside her green eyes was a memory, one that terrified her. Lacy knows this because she always has the same memory and it haunts her just as much as it haunts Hannah.
Once Harris began class, Lacy forced herself to forget about it. "Einstein once said, 'Two things are infinite: the universe and human stupidity—"
Hannah snorted quietly. "Yeah, ain't that the truth."
"And I'm not sure about the universe.' I, myself, have encountered infinite stupidity."
When Lacy saw his eyes cut to Stiles, she rolled hers.
"So to combat the plague of ignorance in my class, you're going to combine efforts through a round of group experiments. Let's see if two heads are indeed better than one. Or in Mr. Stilinski's case, less than one."
Stiles also rolled his eyes.
"Erica, you'll take the first station. You'll start with—" Harris was cut off by an abundance of hands immediately raising in the air, mostly males followed by a few girls, except for Scott, Stiles, and Isaac. "I didn't ask for volunteers. Put your hormonal little hands down. Start with Mr. McCall."
"I think I've forgotten everything there is about chemistry," Lacy admitted, her lips curling into a light smile.
"It's not like it's important," Hannah muttered, reaching for a beaker and the blue liquid on the table. "Exactly what does this shit teach us?"
Lacy blinked and watched her pour the substance into the beaker. She shook her head. "I don't know."
"None of this helped us when we were trapped out there."