Stacey made her way back to the living room, unable to believe what she had just seen. Sam's car – the car he'd flippantly referred to as "broken down" since the night Mallory died - was dented and splattered with blood.

Sam hit Mallory. The evidence was there. Stacey knew it.

But she didn't know what to do with the information. Confront Sam? Run like hell out the front door, drive away, and call the cops?

"Hey, Stacey!" a figure appeared in front of her, startling her. She stifled a scream as she realized it was just Charlie.

"Oh, hi..." She tried to play it cool.

"Janine and I are going out for dinner. You and Sam wanna go with us? Janine's in the bathroom freshening up, but we'll be ready to go in, like, five minutes."

Stacey's mind raced. "Oh...um...No...I...I actually have to go...Family emergency." She fibbed.

Charlie shrugged, "Maybe next time."

As Stacey whirled around to leave, her phone rang. It was Kristy.

"Are you and Sam still at my house?" she asked.

"Yes," Stacey replied. "But I'm leaving-"

"Are Charlie and Janine there?"

"Yes."

"Stay there – keep them all there," Kristy commanded. "The rest of us are on the way."

"But, Kristy," Stacey argued, "There's something-"

"Just do it," Kristy insisted. "It's important. Really important. We'll explain everything when we get there."

Before Stacey could protest more, Kristy hung up.

Stacey felt trapped. And even more anxious and confused than before. Kristy had sounded serious, so she felt compelled to follow orders.

"Um...ya know," Stacey did her best to exude charm and calm coolness as she strode back toward Charlie. "There is this show that you guys just have to see. Where's the remote?"

"I thought you had a family emergency?" Charlie said as he pointed toward the remote on the coffee table.

"Oh...uh...False alarm."

Just then, Janine came into the room. She shot a tense look at Stacey. Stacey responded with a friendly smile.

"I just cannot remember what channel it's on," Stacey muttered, scrolling through the channel guide as slowly as possible to waste time. "But, seriously, you have got to see it."

Out of the corner of her eye, Stacey saw Janine cross her arms in agitation. She heard her emit an impatient sigh. Charlie shrugged helplessly in reply. And then Sam bounded down the stairs and strode into the room.

"Ready?" he asked her hurriedly. "Let's go."

"Just a sec," she stalled, smiling sweetly and batting her eyes. "I want to show you guys this show. It's so crazy..."

As Sam, Charlie and Janine exchanged annoyed glances, Stacey continued going back and forth through the channels. And just when she thought she couldn't prolong the ruse any longer, Kristy, Claudia, Mary Anne and Dawn walked in.

"I'm glad you're all here," Kristy began ceremoniously. "Because I have a few questions to ask."

"What's up?" Charlie asked.

"Well..." Kristy sauntered across the room like a lawyer in a courtroom during a cross-examination, stopping in front of Claudia's sister. "We'd like to know why Janine called Sam 47 times last month."

Janine went pale. Sam went pale. Stacey's jaw dropped. Charlie looked utterly dumbstruck.

"Well?" Kristy prodded, glaring at Janine.

"I...I...I..." Janine looked frantically to Sam.

"We've been seeing each other for a couple months," Sam admitted, looking down at the floor. He didn't dare look Charlie or Stacey in the eye.

"I'm sorry," Janine cried quietly to Charlie.

"You've been cheating on me with my brother?" Charlie was enraged.

"I never meant for it to happen," Janine explained. "And, honestly, it was just a one time thing..."

"Forty-seven phone calls!" Kristy argued.

"She's right," Sam defended. "Technically, we only cheated once. The phone calls were...something else."

"Something else?" Kristy paced over to Sam. "Like part of a conspiracy to blackmail the Babysitters Club?"

"Huh?" Sam was genuinely befuddled.

"You're B, aren't you?" Kristy whirled around to face Janine.

"What?" Janine was equally befuddled.

"You're the one who has been following us. Texting us. Threatening us!" Kristy accused boldly. "You're B!"

Janine shook her head and wiped a tear from her cheek. "I don't know what you're talking about."

"She's not B," Stacey interjected. "And neither is Sam."

Everyone turned to face Stacey.

"They're not B," she took a deep breath. "But they did kill Mallory."

The room went silent. No one spoke. No one moved. No one seemed to even breath.

Finally, Stacey let loose. "You killed her, Sam! I saw your car! The dent, the broken glass, the blood. You hit Mallory! The place she died is where everybody goes to park and make out. I certainly wasn't with you that night. You were cheating on me with Janine and you killed my friend!"

And then Stacey walked up to Sam and slapped him. Hard.

"Is that true?" Kristy asked.

Eventually, Sam nodded. Janine slowly nodded, too.

"Oh, Janine!" Claudia gasped.

"It was an accident," Janine explained through uncontrollable sobs. "We thought we hit a deer..or a dog...or some kind of large animal. We didn't realize it was her until later. We didn't mean to hurt her! We didn't mean to!"

"But you did," Charlie snapped. "Accident or not, you killed someone. You have to turn yourselves in."

"I know," Janine wept. "We've just been so scared...and so horrified by what happened."

"You should be," Kristy commented coldly.

"How long have you known?" Janine asked.

"For about...an hour," Claudia replied, glancing at the giant clock she was wearing on a chain around her neck.

"So you aren't the ones who were leaving notes on my car?"

"That would be B," Claudia replied, remembering the pile of post-it notes in Janine's desk drawer. "It's the same person who has been threatening us. We don't know who it is."

"But..." Kristy got that crazy look in her eye. "Janine can help us find out."

"What? Seriously?" Stacey was practically breathing fire as she glared at Janine. And Sam.

"Janine's the smartest person we know," Kristy explained. "She can do all kinds of computer hacking stuff. She can trace B for us. Can't you, Janine?"

Janine shrugged. "It should be relatively simple. I would first -"

Kristy held up a hand to silence her. "We don't need to know how the sausage is made, Janine. Just do whatever you have to do to find B. Then you and Sam can go to the police and confess your role in what happened to Mallory."

Janine nodded sullenly. Sam continued to stare at the floor, stricken by shame and regret.

"Oh my God!" Dawn exclaimed – pointing at the television.

The words on the screen said 'Stoneybrook Teen Missing'. The picture on the screen was Abby Stevenson.

There wasn't much information available. All investigators knew was that she had gone to mall with her sister, Anna. They split up so Anna could browse in the music store while Abby went her own way. They were supposed to meet at the fountain in the center of the mall at 2:30, but Abby never showed up.

"I saw her!" Dawn wailed. "I saw her at the mall this afternoon!"

The others bombarded her with questions. "What time did you see her?" "Was she alone?" "What store was she in?"

"It was about two o'clock," Dawn replied. "She was in Spencer's."

And then Dawn went pale. She remembered how she wondered why Abby wasn't being harassed by B. She remembered the guy in the hoodie who approached Abby.

"You guys!" she shrieked. "I think Abby is with B!"

She explained everything she had thought and seen.

"It makes sense, right?" she asked, looking around at her friends.

"It actually does," Kristy nodded.

"Wait," Claudia clarified. "Are we saying Abby is working with B? Or that Abby has been kidnapped by B?"

"It could be either," Kristy answered grimly.

"We'd better work fast, then!" Janine noted. "My laptop at home has all the software I need to trace B."

"Take my phone," Claudia tossed her cell to her sister. "All the texts from B are there."

"Call us as soon as you find out anything," Kristy instructed.

"You're just going to let her go?" Stacey was incredulous. "She could totally bolt right now!"

Kristy rolled her eyes. "Janine is harmless, Stacey. B is the dangerous one. And Janine can help us find him."

"If she finds him first, she may hook up with him," Stacey retorted with a catty sneer.

Janine left. Charlie went to his room. Sam went to his room. The BSC remained. They alternated between talking nervously about the whole bizarre situation and sitting in silence, each wrapped up in their own horror-filled thoughts.

"I'm calling the police and telling them about the guy in the hoodie," Dawn decided.

"It's time for B to get caught," Mary Anne agreed. "We made peace with Jessi. Mallory's so-called murder is solved. His game is over."

Dawn called the police and was given the number of a tip line. The tip line consisted of an automated voice directing her to leave a message.

"Ridiculous!" she lamented. "My information is really important, yet it will get lost among a thousand bogus tips."

"We'll solve this on our own if we have to," Kristy declared. "Janine will be calling any minute with the information we need."

An agonizing forty-five minutes later, Kristy's phone rang.

"I traced B's location," she said, her voice laced with apprehension.

"And?" Kristy urged impatiently.

"I traced B's IP address," Janine disclosed, "It's coming from...the Pike's house."