"What do all these lines mean?" Liam asked. He pointed to tubes that ran throughout the upper school.

"Hmm...let me see, I can't really tell. Maybe ductwork or something?" Seth squinted at the doc.u.ments and flipped them around trying to figure out what the lines could mean.

"And what are all those pictures of the crest?" I asked. The crest was positioned on top of the clean lines of the blueprints at seemingly random spots.

"What do you mean?" Seth asked, still distracted by the mysterious tubes running throughout the blueprints.

"Like that, right there by the clock tower," I pointed. "And there's another one by...what's that? The auditorium. And see right there, that one's marking the chapel."

"It's the stations. They're marking the stations," Liam said.

He was right. Each of the Twelve Stations was marked, but then a larger version of the Pemberly crest was right in the center of campus.

"If they're marking stations, then what's that?" I asked pointing to the large symbol.

"I don't know...maybe that one's just decoration or something," he replied.

"Tunnels!" Seth's voice rang out in triumph. "You guys, these lines are the tunnels!"

I grabbed the blueprints from him to get a closer look.

"If those are tunnels, they're all leading to the same place, the large symbol." I thought about it a minute, and then it came to me. "The stations must be...um...entryways or something...to get into the tunnels." I stopped for a second to catch my thoughts. "And that large crest in the middle...it's got to stand for something. It's at the center of everything for a reason."

The three of us stared back and forth at each other, digesting everything I'd just said. And as though we'd rehea.r.s.ed it, we all whispered at the same time.

"Headquarters."

Well, Liam and I whispered it. Seth whispered the word "nest" instead. Liam and I both screwed up our faces.

"Did you just say, 'nest'?" Liam asked, shaking his head.

"What? You know, the nest of the crest? I bet that's what they call it. The Bird's Crest Nest. Or something like that." Seth shrugged his shoulders.

I started laughing but was interrupted by footsteps pounding up the attic stairs. Porter poked his head into the cramped room.

"Quick, guys! It's my mom. You need to get out of here. She'll kill me if she knows I let you go through all this old junk."

Seth rolled up the blueprints to put them back in the tube as a smaller piece of paper floated to the ground. Without hesitation, I grabbed the paper and stuffed it into my pocket.

"Porter? Alistair? I'm home! Boys? Where are you?" We heard a tinny voice call from downstairs.

"Come on, guys. You need to hurry. Just leave that stuff." Porter practically pushed us down the old flight of stairs and shoved us all into his bedroom.

"Porter? Where are-Oh, hi, I didn't know you had friends over." Mrs. Reynolds popped her head into his room and gave us a broad smile.

"Yeah, just a study group, Mom."

"Oh, how nice. Ana's making dinner. Would you three like to join us?"

"No, thanks. We really need to get going. Right, guys?" I looked at Seth and Liam, who were already nodding in response to my question.

"Well, thanks for all of your help, Porter. See you around." I couldn't stop myself from giving him a quick wink. It was just too easy.

Liam must have caught my little gesture too, because he grabbed my upper arm and dragged me to the door, rolling his eyes.

"Easy, tiger. Time to get home."

Chapter 47.

As soon as I was in the safety of my bedroom, I pulled the crumpled paper from my skirt pocket. Carefully smoothing it out on my desk, I flipped on my desk lamp and sat down to take a closer look. It listed thirteen stations and their original Latin inscriptions.

I wondered if we were right about the headquarters, if there really was a Station 13 beneath Pemberly Brown. I shook my head back and forth at the possibility. Just the thought of an underground room full of secrets made me feel as though I'd landed in the script of some crazy movie. This was the stuff Hollywood was made of, not Pemberly Brown. But as I ran my fingers over number thirteen on the list, I began to wonder.

If there really was a headquarters, did the stations actually lead down under the school? And what about the Brotherhood? We had seen boys coming out of the tunnels yesterday. Did that mean the two societies shared the tunnels? If so, maybe they weren't really at war. Or maybe the Brothers were the ones in control at this point. Based on what ConspiracyLuvR said, it sounded like the power was always changing hands.

The buzzing of my phone interrupted my thoughts. Right on time, I had mail.

To: [email protected] Sent: Thurs 6:15 PM From: Subject: (no subject) Station 13 is the place to be.

Each Latin word holds the key.

Was it weird that I was sort of getting used to the ghostly missives? They didn't even give me the chills anymore. Maybe it was a sign that Grace really wasn't a ghost after all.

I pushed the thought from my mind. That was absolutely ridiculous; besides, I had to focus on the task at hand. There was a Station 13, a headquarters, the place all the tunnels led to, the heart of the societies.

Each Latin word holds the key.

And yet I had to find some sort of key to get inside. Like a pa.s.sword. I was close, yet so, so far away.

But I had to start somewhere, and at least this time around I'd have Seth and Liam to help. I held the yellowed paper between my fingers and let my eyes fall to my favorite station, the clock tower.

Tempus edax rerum. "Time, devourer of all things." I stared at the ancient words, trying to find what was hidden, trying to find the key. But all I saw was a dead language.

This was going to be interesting.

a a a After school the next day, the three of us sat huddled on the first level of the clock tower practically twiddling our thumbs.

"Well, we might as well go down to the bas.e.m.e.nt. I'm thinking if there is a door, it will be down there," I said, already starting down the stairs.

Seth rushed down past me and, as soon as he made it to the bottom, began groping the entire length of the old brick walls like some type of redheaded spider.

"What exactly are you looking for, Seth?" I asked.

"There's got to be some kind of b.u.t.ton we can push to reveal a hidden staircase." His hands were everywhere, and he almost knocked one of the Time Keepers' pictures off the wall.

The Time Keepers, or Vicis Custodis, were yet another PB tradition. Each year, one fourth-year student was selected to be the Time Keeper. In the old days before the clock tower had been remodeled, the Time Keeper would actually climb to the top of the tower and set the clock at the start of each school year. But now it was just one of those random honors that came with a college scholarship and a picture on the interior walls, the words Ab Aeterno, "From the Eternal," engraved into the ornate frame.

When we were in lower school, Grace, Maddie, and I used to come down here to admire the rows of upper-school students, all grown up and official-looking. They were mostly boys, hot boys from where we were standing. We'd make up stories about who was going out with who and who was most likely to become a Vico Custodio during our fourth year. It might have made me sad to remember the three of us, but I was too distracted to reflect.

"Grace's email said the Latin words hold the key. There's got to be some sort of hidden key box around here. It probably has Latin words engraved on it," I suggested. "You know, like the ones they put in gardens and stuff." I got down on my hands and knees and began feeling around, searching for the hidden box.

"I don't think they'd make it that easy," Liam responded, his eyes locked on the rows of pictures. "I mean if there was a box down here with a key in it, anyone could find it, you know?"

He smiled, but I still felt stupid for being so literal. Then when he whispered, "Maybe next time," with a raised eyebrow, I felt a blush creep into my cheeks. I brushed my knees off and punched him lightly on the shoulder.

Suddenly Liam was on his feet. He moved so quickly that it made me jump a little.

"What is it? Is someone coming?" Seth sounded panicked.

Without saying a word, Liam began lifting pictures off the walls and setting them gently on the ground. He ran his fingers over the brick, pressing every so often.

"The Latin words hold the key, right?" he asked, still lifting pictures. "The Latin at the bottom of the frames. This has got to be it."

I rushed to the wall and began lifting frames as well. Once we had examined the s.p.a.ce beneath each and every Time Keeper, we were no closer to Station 13 than we had been when we started. There was nothing but brick and mortar beneath the frames-no keys, no pa.s.swords, no answers. After replacing the final picture, I slapped at the bronze plaque marking the clock tower as Station 2. Not for good luck, but more out of frustration.

Think, Kate. "The Latin holds the key." What did that mean? I ran my fingers over the raised bronze letters as Liam knocked on the floor with his ear to the ground and Seth attempted to pull bricks from the wall with his fingers. And then it hit me. The phrase Tempus, edax, rerum was made up of letters. Lots of them.

If I rearranged the letters, I could form words, or pa.s.swords. I pushed the T in "Tempus," and sure enough, the letter clicked into the plaque like a key on an old typewriter. Only it stayed indented. I tried to pick it back out with my nonexistent nails, but the T was stuck.

I stepped back, frustrated that I'd probably just destroyed our chances at getting in because I jumped the gun on the b.u.t.ton pushing when, just as suddenly, the letter popped back out again. It was clearing itself! It might take a few seconds, but whatever controlled the access to the tunnels would reset, waiting patiently for the correct series of letters.

"You guys!" I shouted, stepping back and narrowing my eyes at the Latin words. "I think I know how to get us in."

Seth and Liam rushed to each side of me, eager for an explanation.

"The letters can be pressed, and if they're pressed in the right order, a door or something will open, granting us access."

"So what? You just have to guess at what order to press the b.u.t.tons?" Seth asked, stretching out his fingers in preparation for all the pressing.

"No, I think we have to form new words using the letters. 'The Latin holds the key'," I repeated, more to myself than anyone. "At least, I think that's what it means. It's worth a try, I guess."

"Murder, era, set, seat, and dare." All this time, Liam hadn't said a thing, and now he was listing random words hidden inside the Latin phrase like he'd been doing it all his life. Seth and I watched, mouths hanging open. "What? I'm kind of good with puzzles."

I punched in each letter, forming Liam's words, but nothing. The letters all stuck in and all popped out without as much as a hint to where the trapdoor could be. We were missing something. I just hoped the code called for an English word. I was good at Latin, but not that good.

Time, time, I repeated in my head, thinking of the clock tower. The code would probably have to do with time. And then, as though the letters were lit up from behind, I saw them, one by one. M-E-A-S-U-R-E. Time was the eternal measurement-that had to be it!

Each letter clicked into place, and as I pressed the second letter e, our final chance, I heard the dull pop of a door right next to Seth's bright white Puma. A second ago it had blended in with the stone floor, and now out of nowhere came a door. I couldn't believe it. All of us fell to the floor and pulled at the edges, peering down into the depths below. I clicked on my flashlight, took a few deep breaths, and hoped for the best.

We were going down.

As we descended the stairs, I was overwhelmed by our surroundings. Antique-looking sconces lit our way. The heels of my riding boots echoed softly on the well-worn stones that made up the stairs. The air felt damp and somehow ancient. It was like a totally different world.

"Guys," I whispered. "Can you believe this?"

Seth ran his hand along the rust-colored brick that surrounded us.

"No," they said at once.

The cobblestones beneath our feet glimmered, flecks of crystallized rock set off by the dim light of the sconces. I could tell that the tunnel branched off a few feet from us, and I found myself wishing we could have taken the blueprints as well.

"Which way are we going to go?" I asked.

"I don't know. I'm totally turned around," Liam answered, stopping for a second and trying to get his bearings.

"I think we should keep going straight," Seth said.

"That's funny, because I was gonna say we should turn right," I said. "But I'm always wrong with directions. Let's go straight."

As we continued walking through the arched tunnel, I felt a pit form in my stomach. Here we were, walking beneath the school without any sense of direction and no way to defend ourselves if we got caught. We were confined by brick, and no one would hear our screams or even find our bodies, if it came to that. Grace had lost her life underground-could we? The brick walls seemed to cave in on me. I was trapped.

"I have to go back," I said, nearly choking. "Turn around."

I grabbed at the brick wall with one of my hands and began to breathe deeply. At that second, I wished I was anywhere but there. I'd even have taken the uncomfortable wooden chair that made my b.u.t.t fall asleep at Prozac's office over the tunnel. I took off in the direction we had come from and felt completely turned around when I made it back to the branch in the tunnel.

"Kate, wait!" The boys tried to whisper-shout, but I couldn't stop. I turned left, stretching my neck to see if I could see light or anything at the end of the tunnel. But there were only stairs that led down, and I knew we hadn't climbed up any stairs on the way there. I'd chosen the wrong branch. My horrific sense of direction had impeccable timing. I sat at the top of the stairs and put my head between my knees.

Liam and Seth ran to either side of me and rough-armed each other to see who could get a better hold. Liam won.

"It's okay. It's just a little claustrophobic down here," he said. He gathered my hair away from my face and swirled circles on my back with his palm.

I looked up and over at him, just to make sure Liam was doing the touching, and noticed that Seth wasn't next to me anymore.

"You guys!" Seth called from the bottom of the steps without even looking up at us. "It's the nest...or the headquarters or whatever."

Liam helped me to my feet, and we headed down the stairs. Portraits of women hung on both sides of the wall for as far as I could see down the hallway. The ones nearest us were the oldest photographs, so I a.s.sumed they got more recent the farther you walked down the hall. Each of the girls wore white along with a pendant around her neck. The same charm Cameron had found and the one in Naomi's locker.

"Check it out," Liam said, pointing to one of the girl's necklaces. "That's what was sketched with chalk the night..." He trailed off. I think we must have all noticed it at the same time. As we continued down the narrow hallway, we could see that the gla.s.s on the most recent pictures had been smashed.

"Why do you think they did this to the pictures?" I asked. It was weird, because they had clearly been hung with care. Not a single picture was crooked, and yet they had been systematically destroyed.

As soon as we got to the bottom of the stairs, we stood with Seth before a heavy wooden door. An intricate crown was carved into the grain and sat atop a Gothic-looking letter S. The crest. The door was a real, live version of the Pemberly crest, the Sisterhood's symbol.

A bronze plaque hung below the S, the words Audi, Vide, Tace raised along it. But the beautiful door had been destroyed by a huge letter B someone had painted down the center.

"I don't think we're in Sisterhood territory anymore..." I ventured.

"No, it looks like there's been a takeover. A hostile one." Seth agreed.

"Well, that explains why Alistair was coming out of the tunnels." Liam ran his fingers over the red paint of the letter. "Guess they haven't patched things up after all."