Do the Math #2: The Writing on the Wall

Chapter One

Patterns

"There was this tagger in Los Angeles," Sammy said, "who wrote coded messages about who was going to get murdered next. He knew that only one person in the city could figure out what he wrote, and that person did figure it out, but not until about six people were already dead." Sammy turned away from the graffiti wall to face Miranda and me. "From then on," she said, "the murders stopped."

Even though Sammy does know a million facts, she's so dramatic that it's always hard to know if what she's telling you is accurate or a major exaggeration.

"That's creepy," Miranda said.

We only had about five minutes before school started, and I wasn't really all that interested in checking out the graffiti Sammy was so excited about. But when she said, "What I'm thinking is that this could be a warning, too, and that the person who wrote it knew Tess would understand it," I looked at the numbers that were painted on the back wall of the church near our school.

There were about twenty bright green fours in the bottom corner, styled in a way that made it look like art—all different sizes and shapes—but still fours. They formed a messy circle, so I had to tilt my head from side to side to figure it out.

"Do you understand it?" Miranda asked as she handed me her denim jacket and took my white sweatshirt. Miranda used to be smaller than Sammy and me, but ever since we got to eighth grade she's the tallest one—she's about two inches taller than me now, and I'm about two inches taller than Sammy. It doesn't really matter, though—we still always share our clothes.

"I think it's the Four Fours problem," I said, slipping on Miranda's jacket. "It's one of Ms. Saltzman's favorite things—she gives us these for warm-up at math team practice. You're supposed to be able to make nearly any number by using exactly four fours," I explained. "Like this one"—I pointed to 4x4-4/4—"would be the number fifteen."

"Clever," Miranda said.

"I knew you'd know," Sammy said. "What I'm thinking is that maybe this is like that guy in LA, and someone is telling you the next thing that Richard's going to do to you."

"Oh, come on," I said, picking my backpack up from the ground and tossing it over one shoulder. "Richard probably doesn't even know the next thing he's going to do to me."

Sammy shrugged. "I'm not saying for sure; I'm just saying maybe."

"Stop scaring her," Miranda said as the three of us headed toward school.

I had known that Richard would do something to get back at me for turning him in, but I thought it would be something big—maybe something so awful that I'd want to transfer out of Westlake. Instead, though, he was making me suffer by doing a lot of little mean things in the three weeks since we got back to school from winter break.

In a way, I thought as I opened my locker and saw the folded piece of paper that had been slipped through the slats on the locker door, that can be worse because then you're always waiting for the next bad thing to happen. Also, you have to spend your time wondering if he'll ever be finished.

I unfolded the note about five times before I got to the words that said, "Watch out, snitch." Miranda was standing next to me, and even though I was trying not to be scared, I could tell that she was—or maybe she just looked that way because she wasn't used to wearing glasses. She had gotten a pair over the break, and after reading the note she looked at me over the top of her glasses, not through the lenses. "You okay, Tess?" she asked, blinking her eyes as the bell rang.

"I'm okay," I said, shoving the stupid note into my pocket.

Ms. Saltzman had changed our seating at the beginning of the semester and most people complained, but I liked my new place in algebra class. There were seven tables in the room with four people sitting at each table, and one reason I liked the arrangement was that from my position at the table farthest back, I could see everyone else in the room. I could see Richard a lot more easily than he could see me.

"Mathematics is the study of patterns!" Ms. Saltzman announced as she walked around the room, her high heels clicking on the floor. Ms. Saltzman is single, and you can always tell if she has plans after work by what she's wearing. Sometimes she comes to school in slacks and T-shirts and no makeup, but this morning she was wearing a straight black skirt with a deep purple sweater, so you knew it was definitely a date night. Ms. Saltzman has brownish blond hair that always looks messy whether she dressed up or not, because that's her style.

Ms. Saltzman clicked to the front of the room and wrote the numbers 1, 6, 11, 16, 21, 26 . . . on the board. "It's pretty easy to find the twelfth number in this pattern," she said. "You'd just add five a few more times, right?" Then she turned toward us. "But what about the thousandth?" she asked, smiling, and you could just tell that patterns was one of the math concepts Ms. Saltzman was madly in love with.

A new girl named Lucia had come to Westlake thissemester, and as I scanned the room I stopped to watch her for a while. Lucia wears silver rings on the first and ring fingers of both her hands, which I like a lot. She's about my height, but she looks like she weighs more than me—she's not fat, just curvier and strong looking. Lucia sits next to Marcus, and he's always doing things to try to get her attention. Anyone who's watching can see how much Marcus annoys Lucia because she leans way to her left to be as far away from him as she possibly can.

Do the Math #2: The Writing on the Wall. Copyright © by Wendy Lichtman. Reprinted by permission of HarperCollins Publishers, Inc. All rights reserved. Available now wherever books are sold.

---

Excerpted from The Writing on the Wall by Wendy Lichtman
All rights reserved by the original copyright owners. Excerpts are provided for display purposes only and may not be reproduced, reprinted or distributed without the written permission of the publisher.