Tensions Rise Between the Math KidsWhen Stephanie finds out her soccer team has a tournament on the same day as the district math competition, an upset Justin offers her a choice: choose Math Kids or leave the club. Dismayed by his attitude, Stephanie quits and Catherine goes with her. With their club in shambles, the future of their friendships is further threatened by the news that Justin's dad has been offered a new job and wants to move his family to St. Louis.Jordan, Justin, Catherine, and Stephanie may face the permanent fracture of their friend group and a bleak end to their school year—unless they can come together to overcome some impossible situations.Problem solving skills apply to much more than homework in the latest addition to the Math Kids series

The Math Kids Club is back! After solving the case of the prime-time burglars, The Math Kids, Jordan, Justin, and Stephanie are ready to return to the original purpose of their club: solving math problems. And the district Math Olympics is the perfect opportunity to do just that. But before they can enter the competition, they need a fourth teammate. The Math Kids set their sights on Catherine Duchesne. Even though Catherine has been quiet in class, she knows some really cool math tricks that are sure to help The Math Kids win the competition. But when Catherine doesn't show up for school and Jordan, Justin, and Stephanie find out her father's been kidnapped, the group springs into action to help their new friend. The Math Kids: A Sequence of Events, is the second book in David Cole's fast-moving math adventure series

The Math Kids are at it again! When their new friend, Special Agent Carlson, asks them to take a look at a cryptic poem written by a dying bank robber, they know they will need all of their math skills to crack the case. The poem isn't their only problem, though. Their favourite school janitor is fired for stealing from student lockers. The Math Kids know Old Mike would never do anything like that, but how can they prove it, especially with the new janitor watching their every move? Jordan, Stephanie, Justin, and Catherine will need math, bravery, and a little bit of luck if they hope to solve the bank robbery case and get Old Mike his job back. Will they be able to figure out the unusual pattern in time?

Jordan and Justin are best friends and the only two kids in their class's advanced math group. So it isn't until Stephanie Lewis marches into their classroom that they meet someone who's as good with numbers as they are. Their shared interest in math quickly draws them together, and the three soon form The MathKids.Unfortunately, life as math club kids isn't always easy. In addition to extra homework, the three friends have two new problems. First, a string of mysterious burglaries has the whole neighbourhood on edge, including their parents. Then, they manage to earn unwanted attention from Robbie, the class bully. Luckily, Jordan, Justin, and Stephanie soon learn that their new club may give them the skills they need to solve both problems.

Hidden cameras, secret operations, and new math concepts await in the Math Kids' ninth adventure!Justin has been accused of stealing from the comic book shop! To earn back the trust of his parents and the store manager, he'll have to work at the shop for four whole weekends. And that puts a damper on his plans to play video games and hang out with fellow Math Kids, Jordan, Catherine, and Stephanie. With the end of summer approaching, the four friends realize that finding proof of Justin's innocence is their only way to save Justin's good name. To get it, they'll need to uncover who really stole the comics. Their primary suspects are the two older boys who accused Justin, but catching them red-handed will require more than just teamwork. Solving this problem will require knowledge of proofs and patterns, and if the Math Kids aren't successful, it won't be just Justin's reputation at risk.

When Stephanie Lewis finds secret writing in the margin of an old book in the library, The Math Kids have a new puzzle to solve. But first, they'll have to learn about codes and ciphers and how they can use their math skills to solve them.As one clue leads to another, the kids are drawn into the mysterious old house that overlooks the town. Is it really haunted like some of the townspeople say? And who is the man in the long beard who keeps showing up everywhere they go?But that's not their only problem. The town's financial problems might mean the cancellation of the math competition they've worked so hard for.Jordan, Stephanie, Justin, and Catherine will need to use all their problem-solving skills to figure out the clues before it's too late.

Part Hopi computer hacker Laura Winslow investigates a shocking web of drugs, murder, and smuggling in this gorgeously–written seventh installment in she Shamus–nominated series.Part Hopi computer hacker Laura Winslow hasn't shed the sense of Koyanisquaatsi––the Hopi word for World Out of Balance, or, for Laura, the feeling that society is falling down. She's just been offered another hacker job by an anonymous client, work that would be illegal and probably unethical; her romance with policeman Nathan Brittles has lately been rocky; and her daughter has just come home with a baby, and won't tell who the father is.But soon a woman named Mary Emich, director of park events at Tohono Chul Park hires Laura, revealing that strange messages have been turning up on the park's computers––signals that something may be very wrong in the usually tranquil area. Laura's desperate need for friendship pulls her to Mary Emich––and soon deep into a case that throws her already–rocky...

A computer hacker and registered PI, Laura Winslow has seen death before, but it never looked quite like the apparent murder-suicide of a reclusive Navajo and his female companion.A refugee from a violent world, Laura has become ensnared in an investigation she should steer clear of, joining her lover, policeman Nathan Brittles, in an attempt to make sense of a bloody puzzle where the pieces don't fit. Because the signposts on the twisted path to the truth warn of the impossible -- a demon, a skinwalker on the prowl -- as Laura Winslow follows a trail leading to the darkest corners of a gambling palace, chasing a phantom she cannot believe in ... until it's her turn to die.

Cloaked in the web's anonymity, part-Hopi computer hacker Laura Winslow is hiding from her past -- but it has found her in the Arizona desert. The daughter she lost years ago is now an angry young woman serving prison time. But Spider's agreement to help the authorities uncover an identity theft ring in exchange for leniency has led the police to a secret burial ground near Casa Grande Monument -- where mother and child are reunited...in terror.The discarded bones are human, and they may be all that remain of dozens of inexplicably missing women. In this place of death and silence on Native American land, Laura Winslow fears for her daughter, who may be the next to die -- unless together they can expose an insidious evil blooming beneath the blind eyes of the law...the terrible beast that is now hunting them both.

Laura Winslow is the name she chose for herself -- a false identity the part-Hopi cyber-investigator can hide behind to escape a reservation past too dangerous and too painful, to acknowledge -- as she plies her trade in the vast, anonymous frontier of the web. But now a friend has been kidnapped following a bloody shootout on the Arizona border that left a wake of unthinkable carnage and Laura asking why. Like a hungry predator, the merciless Sonoran Desert has swallowed up another life, one that Laura is not going to give up on. In the company of a tough reporter who once escaped the wilderness, she is about to cross the line where civilization ends -- entering a majestic wasteland where corruption, lies, and violence are bred and nurtured. But the secrets waiting for them in this hopeless place may be Laura's worst nightmare ... and impossible to escape alive.