In the vein of great box-office blockbusters, the high-stakes romance here sizzles within this page-turning thriller that will leave readers feeling like they are flying through the streets of New York. Cam has come to accept the rhythm of his life as a bike messenger: racing up and down the streets of New York City from one run to the next. With no family to rely on and a mountain of debts, at least it’s an honest way to help pay off his dangerous debtors. Cam’s whole world comes crashing down on him one day when he runs into a beautiful stranger. After falling out of the sky and wiping out Cam and his bike, she disappears before he can find out anything about her. When he starts to see her around town, he quickly realizes that she is part of an underground group of teens who have turned NYC into their own parkour playground—running, jumping, seemingly flying through the city like it’s an obstacle course. Cam becomes fascinated with the sport—and the beautiful stranger, Nikki. He falls in with the group, and they offer him the chance to make some extra money. But when the stakes become life or death, Cam is torn between following his heart and sacrificing everything to pay off his debts.

From the award-winning author of Sandworm comes the propulsive story of a new breed of investigators who have cracked the Bitcoin blockchain, exposing once-anonymous realms of money, drugs, and violence. “I love the book… It reads like a thriller… These stories are amazing.” (Michael Lewis) Over the last decade, a single innovation has massively fueled digital black markets: cryptocurrency. Crime lords inhabiting lawless corners of the internet have operated more freely—whether in drug dealing, money laundering, or human trafficking—than their analog counterparts could have ever dreamed of. By transacting not in dollars or pounds but in currencies with anonymous ledgers, overseen by no government, beholden to no bankers, these black marketeers have sought to rob law enforcement of their chief method of cracking down on illicit finance: following the money. But what if the centerpiece of this dark economy held a secret, fatal flaw? What if their currency wasn’t so cryptic after all? An investigator using the right mixture of technical wizardry, financial forensics, and old-fashioned persistence could uncover an entire world of wrongdoing. Tracers in the Dark is a story of crime and pursuit unlike any other. With unprecedented access to the major players in federal law enforcement and private industry, veteran cybersecurity reporter Andy Greenberg tells an astonishing saga of criminal empires built and destroyed. He introduces an IRS agent with a defiant streak, a Bitcoin-tracing Danish entrepreneur, and a colorful ensemble of hardboiled agents and prosecutors as they delve deep into the crypto-underworld. The result is a thrilling, globe-spanning story of dirty cops, drug bazaars, trafficking rings, and the biggest takedown of an online narcotics market in the history of the Internet. Utterly of our time, Tracers in the Dark is a cat-and-mouse story and a tale of a technological one-upmanship. Filled with canny maneuvering and shocking twists, it answers a provocative question: How would some of the world’s most brazen criminals behave if they were sure they could never get caught?

Twelve-year-old Taj Carter is on a high-stakes mission to track down the time thieves who stole his entire summer vacation—before they steal all the fun on earth! It’s an all-new action-packed series by the authors of the critically acclaimed Shivers! series, Annabeth Bondor-Stone and Connor White. Taj Carter is the kind of kid who has a good time, all the time. He’s the class clown. The best friend. The cool big brother. That is, until he wakes up on what’s supposed to be the first day of vacation only to find that his entire summer is gone! But if that seems like a total nightmare, it’s actually the least of Taj’s worries. He discovers that the time didn’t just fly by, it was stolen. By time thieves! And now they’re after way more than just one kid’s summer break. They’re after all the fun on earth, and it turns out Taj is the key to getting it. He has a target on his back and not a moment more to lose. It’s up to Taj to find a way to get back his summer—and to save the world from falling completely off the clock. Authors of the Shivers! series Annabeth Bondor-Stone and Connor White fiercely defend the right to have fun in the first book of their all-new action-adventure series, Time Tracers.

With a “fast pace, tight plotting, terrific mystery, sharp dialogue, [and] fabulous characters” (Allison Brennan, New York Times bestselling author), this white-knuckled thrill ride follows an expert who helps her clients “disappear”—until she finds herself in the middle of a homicide investigation as the next victim. Private investigator Alexandra Lovell uses computer skills and cunning to help clients drop off the radar and begin new lives in safety. Melanie Bess, desperate to escape her abusive cop husband, was one of those clients. But when Melanie vanishes for real, Alex fears the worst, and sets out to discover what happened. Using every resource she can get her hands on—including an elite team of forensic scientists known as the Tracers, and a jaded, sexy Austin PD detective—Alex embarks on a mission to uncover the truth. But as far as homicide cop Nathan Deveraux is concerned, no body means no case. Yet his instincts—and his visceral attraction to Alex—won’t let him walk away. As a grim picture of what really happened begins to emerge, Nathan realizes this investigation runs deeper than they could ever have guessed. And each step nearer to the truth puts Alex in danger of being the next to disappear.

This book represents a new "earth systems" approach to catchments that encompasses the physical and biogeochemical interactions that control the hydrology and biogeochemistry of the system. The text provides a comprehensive treatment of the fundamentals of catchment hydrology, principles of isotope geochemistry, and the isotope variability in the hydrologic cycle -- but the main focus of the book is on case studies in isotope hydrology and isotope geochemistry that explore the applications of isotope techniques for investigating modern environmental problems. Isotope Tracers in Catchment Hydrology is the first synthesis of physical hydrology and isotope geochemistry with catchment focus, and is a valuable reference for professionals and students alike in the fields of hydrology, hydrochemistry, and environmental science. This important interdisciplinary text provides extensive guidelines for the application of isotope techniques for all investigatores facing the challenge of protecting precious water, soil, and ecological resources from the ever-increasing problems associated with population growth and environmental change, including those from urban development and agricultural land uses.

In the ninth romantic suspense novel in the New York Times bestselling Tracers series, author Laura Griffin brings back her elite cadre of forensic experts as they hunt down the most brutal serial killer yet. Special Agent Tara Rushing arrives at a grisly murder scene and quickly discovers she’s got a serial killer on her hands. The killer is meticulous, making sure to wipe up even the smallest traces of evidence…but the Delphi Center experts are on the case. The local sheriff has a suspect all picked out—ex-Marine and current security expert Liam Wolfe. Despite all her digging, Tara knows very little about Liam when she shows up at his sprawling Texas compound, which serves as headquarters for Wolfe Security, and she’s surprised by her intense physical reaction to him. As she and Liam grow closer, Tara finds herself depending on his skills and expertise to help her track a killer. But when another body turns up, Tara must decide if she can trust the man who’s quickly stealing her heart. The ninth novel in the Tracers series that combines gripping plot twists with spine-tingling romance, Shadow Fall once again proves that “Laura Griffin gets better with each book” (The Romance Reviews).