"In this groundbreaking masterpiece of ingenuity and intrigue that spans 50,000 years of human history, New York Times bestselling author James Rollins takes us to mankind's next great leap. But will it mark a new chapter in our development. or our extinction? A war is coming, a battle that will stretch from the prehistoric forests of the ancient past to the cutting-edge research labs of today. In the remote mountains of Croatia, an archaeologist...

"July Chen sees ghosts. But her dad insists ghosts aren't real. So she pretends they don't exist. Which is incredibly difficult now as it's Hungry Ghost month, when the Gates of the Underworld open and dangerous ghosts run amok in the living world. When July saves a boy ghost from being devoured by a Hungry Ghost, he becomes her first ever friend. Except William is not a ghost. He's a wandering soul wavering between life and death. As the new friends...

After negotiating with the queen of the underworld for ten days aboveground, teenage bruja Ren sets out to save her friends and put the Lords of Night back to sleep forever, all without the help of her shadow magic and time rope.

Pat and Jen are heroes. After defeating Evil Jen and closing all the portals to the underworld, they have nothing to worry about, no villains to defeat, and no adventures to go on. Awesome, right? Until a mysterious voice tells Jen that she has to go to the underworld to uncover a secret about her past. It is a quest she can only undertake alone. With Jen off to find out the truth and Pat desperate to find Jen, the heroes almost don't notice that...

"The great love of Corey's life has always been her best friend, Bree: closer than sisters, their bond is unbreakable. Or so Corey thought, until Bree betrays her in the worst way possible. When Bree's sudden death rocks their small island community, Corey is heartbroken and furious. How can she mourn her one-time friend when she is still so angry at her? But though Bree has passed on, her spirit remains--and her and Corey's tale isn't finished yet....

In Tibet, while guiding trekkers to a holy mountain, Ike Crockett discovers a bottomless cave. When his lover disappears, Ike pursues her into the depths of the earth.... In a leper colony bordering the Kalahari Desert, a nun named Ali von Schade unearths evidence of a proto-human species and a deity called Older-than-Old.... In Bosnia, Major Elias Branch crash-lands his gunship near a mass grave and is swarmed by pale cannibals terrified of light.......

When Captain Shang is mortally wounded by Shan Yu in battle, Mulan must travel to the Underworld, Diyu, in order to save him from certain death. But King Yama, the ruler of Diyu, is not willing to give Shang up easily.

Four years ago, five kids started a game. Not all of them survived. Now, at the end of their senior year of high school, the survivors--Owen, Madeline, Emerson, and Dax--have reunited for one strange and terrible reason: they've been summoned by the ghost of Ian, the friend they left for dead. Together they return to the place where their friendship ended with one goal: find Ian and bring him home. So they restart the deadly game they never finished--an...

"Pat and Jen do everything together, including saving the day! But when Jen and Evil Jen find out they have one chance to find their long-lost mother in the Overworld, Jen's going to take it--even if it means that Pat can't join her on an adventure for the first time ever. With Mr. Rainbow's help, traveling to the Overworld should be the easiest part, but when something goes wrong, Jen and Evil Jen wind up trapped in the Nether. Right about now would...