The bell rang, and the girls rose from their wheels. Emma stood at the sink and let cool water wash over her clay-gunked hands. As she dried them on a paper towel, Sutton’s cell phone chimed in her bag once more. Groaning, Emma pulled it out. Had Gabby and Lili sent another text?

But it was an email message from Emma’s own account, which she’d loaded onto Sutton’s phone. FROM ALEX, it said. THINKING OF YOU! CALL WHEN YOU CAN. CAN’T WAIT TO TALK! XX.

Emma clutched the sides of the iPhone, contemplating how to reply. It had been days since she’d written to Alex, the only person besides Ethan who knew about her trek to Arizona. But unlike with Ethan, Emma had fudged the truth: Alex still thought Sutton was alive and had taken Emma in. Sometimes, when Emma woke up in the morning, she tried to pretend like that was what really happened, and that the previous events and threats had all been a dream. She’d even started a section of her journal called Stuff Sutton and I Would Do Together if She Were Here. She would teach Sutton how to make French cream puffs, something she’d learned at an after-school catering job. Sutton would show her how to curl her eyelashes, which Emma had never been able to properly master. And maybe, at school, they’d switch places for the day, going to each other’s classes and answering to each other’s names. Not because they had to. Because they wanted to.

Suddenly, Emma had the distinct feeling someone was watching her. She whirled around to find the ceramics room was now mostly empty. But out in the hall, two pairs of eyes stared at her. It was Gabby and Lili, the Twitter Twins. When they noticed that Emma had spotted them, they smirked, leaned their heads close, and whispered. Emma flinched.

A hand touched Emma’s arm, and she jumped once more. Laurel stood behind her, leaning against the big gray trash barrel of wet clay next to the sink.

“Oh, hey.” Emma’s heart pounded in her ears.

“Just waiting for you.” Laurel brushed a lock of highlighted blonde hair over her shoulder and stared at the iPhone in Emma’s hands. “Writing to anyone interesting?”

Emma dropped Sutton’s phone into her bag. “Uh, not really.” The spot where the Twitter Twins had stood was now empty.

Laurel caught her arm. “Why did you bring up the train prank?” she asked, her voice hushed and hard. “No one finds it funny.”

Sweat prickled on the back of Emma’s neck. She opened her mouth, but nothing came out. Laurel’s words echoed the note she’d gotten: The others might not want to remember the train prank, but I’ll be seized by the memory always. Something had happened that night. Something horrible.