The lure of the find behind the loose hearthstone at Hazleton House was too great. The schematic excited Evan, Reenie, and Ivy for different reasons, but it is Kayla who actually begins building it. Her ability to focus to the exclusion of all else is just one of the effects of her Asperger's. The scribbled initials, E. W., were merely a curiosity, until it's discovered they belong to Eli Whitney. But strange footprints and disturbing visitors let Evan know that the theft of his sister's prize schematic isn't just a coincidence.

Dr. Becky Sorenson has found a cache of frogs with a very high mutation rate...and some odd behaviors. Dr. David Carter’s core earth samples seem to indicate the next polar reversal will be worse than predicted. And CDC researchers Jordan and Jillian are looking at a strange new disease. When the four scientists delve deeper, they discover they are all looking at the leading edge of a sweeping magnetic polar reversal. As humanity ignores their increasingly panicked warnings, the scientists will have to fight to save everyone...if they even can.

Joule and Cage Mazur feel like prisoners in their home. With something new stalking the streets at night, their family’s only protection is bolting the door and embracing the darkness. And even though they manage to trap and kill one of the monsters, their locks won’t hold forever….

Out of the blue, a young Space Fleet officer's dream becomes reality: He's made captain of a starship. Just in time for the return of humanity's most terrible enemy, after 50 years of peace. To survive against this enemy, Captain Tad Thatcher will have to do more than learn how to become an effective commander, or how to wrangle his wayward crew. He will need to reinvent space combat. From scratch.

Deadly radiation from a passing comet is about to destroy life on Earth. In desperation, the US government constructs a series of underground shelters to protect as many people as possible. They are expected to be underground for 20 years before returning back to the surface. But can they survive their time within the confines of the underground shelter? And what will they find when they finally emerge?

A mysterious object crests the Sun during a total solar eclipse. Cryptic radio-frequency noise jams TVs and radios worldwide. Sinister alien artifacts inexplicably appear in the capitals of the world's powers. Paralyzed with fear, society begins to crumble. Former NASA scientist Jasmine Evans is the first to spot the object and sound the alarm. Recalled to investigate the mystery, her team makes a critical discovery. But nothing is what it appears to be.

Finn had thought he'd seen it all...but no...he had to admit...Not quite everything...There was a big universe out there and it was about to land in his lap. Just how bad could it be? Insubordinate and on the edge, Finn is a troubled war hero racked by guilt, overseen by an unyielding Commanding Officer while dragging his ragtag group of rookies through basic training. Suddenly caught up in a major global crisis, he joins with Gunner Zuri Zuberi, leading Delta Squad in a desperate struggle for survival when an alien incursion lands slap bang in the middle of their training session.

Captain Keyes is loved by the public but hated by Command. He captains the UHS Providence, an aging supercarrier and the last human ship not dependent on dark tech - technology humanity has used to rule over the galaxy since barely defeating the Ixa in the First Galactic War. Dominance has come at a cost. Over the decades, old allies have grown resentful, and when dark tech itself fails, Captain Keyes’ predictions start coming true: those old allies are now enemies.

Join the Endurance's crew - a trigger-happy first officer, a hyperactive engineer, a shy covert operative, a conspiracy-spouting physicist, and a captain trying to earn his way back into his superiors' good graces....

Dylan First, a brilliant psychologist, is haunted by the horrific discovery of her past. Her mentor and father figure, a brilliant psychiatrist and professor, was secretly a serial killer. He is behind bars, but with everything Dylan thought she knew turned upside down, she feels lost when the FBI suddenly comes knocking. A new killer is using her mentor’s trademark signature. And they need Dylan to dissect his mind and stop him before it’s too late.

Commander Dalton Reeves is a maverick officer with exceptional genetic strength and a dark family history—a history that will come back to haunt him. Punished for exceeding orders one time too many, he’s packed off to the "The Abyss"—the most dangerous space station in the galaxy. But a posting that should have led to five years in obscurity will propel Reeves into the center of an interstellar war against a long-forgotten alien adversary with a bitter grudge.

Suburban New Jersey Detective Napoleon “Nap” Dumas hasn't been the same since senior year of high school, when his twin brother Leo and Leo’s girlfriend Diana were found dead on the railroad tracks - and Maura, the girl Nap considered the love of his life, broke up with him and disappeared without explanation. For fifteen years, Nap has been searching, both for Maura and for the real reason behind his brother's death. And now, it looks as though he may finally find what he's been looking for.

In 1939, a secret airship departed Nazi Germany in the dark of night filled with some of the most influential people of its time. Its cargo: a complement of rich Jewish families carrying their most valuable possessions. One such item among them was as dangerous as it was priceless. The airship never reached its destination. In 2015, Sam Reilly, a marine biologist and wealthy son of shipping mogul James Reilly, discovers a missing clue about the lost airship, and what follows is a violent treasure hunt.

Coco Wells hasn’t seen another living person since she was a teenager. All of Manhattan is reliving the same few seconds, minutes, or hours on a loop…and they have been for years. Everything looks normal from a distance, but up close, it’s a nightmare.

Michael, a professor of particle physics, has discovered a way to pierce the veil of time and space, but in so doing, he’s unwittingly opened Pandora’s box. Is it possible to undo what a future version of yourself has done, or is the world doomed to the chaos that’s been loosed on the world?

When Mattie Winston catches her husband, Dr. David Winston, receiving some very special loving care from RN Karen Owenby, she quits her job and moves out. Mattie's best friend, Izzy, offers her a place to stay and suggests she'd be a natural as deputy coroner. Now, instead of taking patients' pulses, Mattie's weighing their hearts and livers. But Mattie's first homicide call turns out to be for none other than Nurse Karen, and even though she saw her ex in a heated argument with the newly deceased the night before, she refuses to believe David could be a killer.

Eve Wilson's face was once scarred by a vicious assault. Terrified and ashamed, she escaped to the online realm, where she could choose the face she allowed people to see. Years later, her outer scars faded and inner scars buried, Eve has fought her way back to the real world and is determined to help others do the same. Now a graduate student moonlighting as a bartender, Eve researches the addictive powers of online communities. When her test subjects begin turning up dead as a result of apparent suicides, she doesn't know where to turn.

As a medical examiner, Samantha Owens knows her job is to make a certain sense of death with crisp methodology and precision instruments. But the day the Tennessee floods took her husband and children, the light vanished from Sam’s life. She has been pulled into a suffocating grief no amount of workaholic ardor can penetrate - until she receives a peculiar call from Washington, D.C. On the other end of the line is an old boyfriend’s mother, asking Sam to do a second autopsy on her son.

Ellery Hathaway knows a thing or two about serial killers, but not through her police training. She's an officer in sleepy Woodbury, Massachusetts, where a bicycle theft still makes the newspapers. No one there knows she was once victim number 17 in the grisly story of serial killer Francis Michael Coben. The only victim who lived. When three people disappear from her town in three years, all around her birthday - the day she was kidnapped so long ago - Ellery fears someone knows her secret. Someone very dangerous.

When Liv Dugan ducks out of work for lunch, it's just an ordinary day. When she returns, she stumbles onto a massacre. All her colleagues at Zuma Software have been shot. Only luck has left Liv unscathed, and that might be running out....

Abby Cooper is a P.I., psychic intuitive. But her insight failed her when she didn't foresee the death of one of her clients - or that the lead investigator for the case is the gorgeous blind date she just met. Now, with the police suspicious of her abilities and a killer on the loose, Abby's future looks more uncertain than ever.

Lurking in the dark corners of J. P. Beaumont's bizarre case was not just a demented mind obsessed with murder, but secrets so deadly that even a street-tough cop could die guessing.

It looked for all the world like a terrible, tragic accident. Susanna Morgan had gotten up in the middle of the night, tripped, fallen, and broken her neck. Yet when detective Justin Westwood inspects the victim's apartment, he can't help noticing that the details don't quite add up. The glass on the bedside table is knocked over but there are no cuts on her body. The scrape on her knee looks suspiciously fresh. And then a terrified witness comes forward, confirming his worst fear.

At the end of a long winter in well-to-do Ridgedale, New Jersey, the body of an infant is discovered in the woods near the town's prestigious university campus. No one knows who the baby is or how her body ended up out there. But there is no shortage of opinions.

Ten years ago... Special Agent Jess Harris has closed another tough case, and now she's determined to make it home to spend Christmas with her only family, her sister. Jess needs a break, and taking it far away from work is the only way to keep her mind off the many faces of evil waiting in the stack of case files on her desk. Running into the past wasn't part of the plan... Daniel Burnett was Jess' first love. She'd fallen hard for him in high school. Together they'd gone off to college with big dreams.

After a near-fatal head injury, Navy SEAL lieutenant Tom Paoletti catches a glimpse of an international terrorist in his New England hometown. When he calls for help, the Navy dismisses the sighting as injury-induced imaginings. In a last-ditch effort to prevent disaster, Tom creates his own makeshift counterterrorism team, assembling his most loyal officers, two elderly war veterans, a couple of misfit teenagers, and Dr. Kelly Ashton.

At the reading of her father's will, Maria Slade receives shocking news—as a four-year-old, she'd witnessed her prostitute mother's murder and been taken into hiding by the well-meaning preacher who'd raised her as his own. Maria remembers none of that. But now she's determined to flush her mother's killer out of hiding and discover the identity of her birth father. She heads to Tulsa, Oklahoma, where she meets Detective Bodie Scott.

On a balmy spring evening, four high school seniors - three boys and a girl - enter a park in the small Pennsylvania city of Conroy. The next morning, two of the boys are found shot to death, and the girl and the third boy are gone. After three weeks with no leads and no sign of either of the two missing teenagers, the chief of police begins to wonder if they too were victims.

Four bodies, each with a single bullet wound in the back of the head, stacked like cordwood in a weed-choked vacant lot: That's the front-page news facing Carter Ross, investigative reporter with the Newark Eagle-Examiner. Immediately dispatched to the scene, Carter learns that the four victims - an exotic dancer, a drug dealer, a hustler, and a mama's boy - came from different parts of the city and didn't seem to know one another.

College senior Lily Madison is on her own and desperate to pay for her last semester of school. With nowhere to turn, she makes the difficult decision to donate her eggs to a fertility clinic. Sam Parker is also a penniless student who supplements his tuition money by visiting a sperm bank. One day, Lily and Sam meet at the clinic and talk about their secret. Despite their obvious attraction, Lily and Sam go their separate ways.