“We’re, um…” Harper glanced back again at Alex, who hurried to provide a reason.

“We’re, uh, we’re reading … books,” Alex responded lamely.

Harper gave him a severe look, like she thought he was an idiot, and Alex shook his head and shrugged.

“What are you reading?” Marcy asked. When neither of them answered, she bent down and picked up the nearest book, which happened to be called Sirens: Handmaidens of the Sea. “This is what you meant by sirens?”

“Uh, yeah,” Alex said.

“Those really beautiful, creepy girls,” Marcy said, putting the pieces together rather quickly. “You think they’re sirens?”

“Well…” Harper swallowed and decided to answer honestly. “Kind of. Yeah.”

“And they took Gemma or had something to do with her running off?” Marcy asked, her voice keeping the same monotone it always had, betraying neither a hint of skepticism nor belief.

“Yeah,” Alex admitted. “We think so.”

Marcy seemed to consider this for a moment, then she nodded as if it all made sense to her, and sat down on the floor.

“Have you figured out a way to get her back yet?” Marcy asked.

“Not yet,” Harper said cautiously. “We’re still looking.”

Marcy held up the Sirens book. “Have you looked in this one, or do you want me to look?”

“You can, if you want,” Harper said.

“Yeah, that’d be great, actually,” Alex chimed in with more enthusiasm than Harper, who was still a bit reluctant to trust Marcy’s acceptance. “There are a lot of books to cover.”

“Cool,” Marcy said, and opened the book.

As Marcy began to read, Harper exchanged a look with Alex, but he just shrugged and went back to reading his own book. Harper couldn’t let it go that easily, though. She wanted to, but even after actually seeing the monsters, she’d found it hard to believe in them. And Marcy seemed to trust it with almost no evidence.

“So … that’s it, then?” Harper asked.

“What?” Marcy lifted her eyes to look at Harper.

“You just…” Harper shook her head, unsure of how she wanted to phrase it. “You just believe in sirens?”

“I don’t know.” Marcy shrugged. “But you guys seem to, and I’ve never known either of you to be totally insane, so I figure there must be some truth to it. Besides that, I always knew something was off with those girls, and they fit the bill as sirens.”

“Oh.” Harper smiled wanly at her. “Well, thanks for the help.”

“No problem.” Marcy smiled back and readjusted her glasses. “My uncle saw the Loch Ness Monster once, too. So I’m a bit more open to things than you.”

Bewildered, Harper shook her head. “Okay.”

“Not that I don’t appreciate the help,” Alex said, as if something had just occurred to him, “but shouldn’t one of you be at the desk in case someone else needs help?”

“There’s a bell up there,” Marcy said. “And this is more important, right?”

Harper normally took her job seriously, but Marcy was right. And Harper had an awful suspicion that if they wanted to help Gemma, they had better do it soon. Or it would be too late.

THREE

Revelations

“I just don’t understand why she’d run away,” he said, with a now-familiar frustration taking over. “She had so much she wanted to do. And she was even dating Alex. Why would she leave? Even if she was mad at me.”

“She wasn’t mad at you,” Harper reassured him. She put the sandwich on a plate, then set it in front of her father, still without really looking at him. “You know this wasn’t about you.”

“But it doesn’t make any sense!” Brian insisted. “I called her swimming coach today, and he said that her times have been amazing lately. She worked so hard for that. Why would she blow it to run away with some stupid girls?”

“She’s sixteen, Dad.” Harper went over to the sink to start rinsing off what few dishes had piled up, just so she’d have something to do. “Teenagers are unpredictable.”

“But you guys weren’t,” Brian said, speaking louder to be heard over the running water. “Gemma may be strong-willed, but I’ve always known what I was getting with her. It’s like the last week she’s turned into something else.”