"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...

Asahi is captured by a human who's using the god of darkness to take over the world! Trapped in the underworld, Asahi resolves to figure out the true intention of this ruthless boy while the water dragon god and Subaru tag team to try to save her!

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...

When Jen and her sister Evil Jen discover the location of the Cookie Islands, Pat and his friends must go back to the Underworld to stop them from triggering the destruction of all the realms of existence.

It was supposed to just be a normal basement--some storage boxes, dust, you know, the usual basement stuff. But when Milo is sent by his mother to fetch a sock from the basement of the historic home they've moved into, Milo finds a door in the back that he's never seen before. Turns out that the basement of his house is enormous. In fact, there is a whole world down there. As Milo travels ever deeper into the Basement World, he meets the many Things...

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.

When Jen follows a mysterious voice that beckons her to the underworld to uncover a secret about her past, Pat almost doesn't notice that a sinister plot is afoot, and to defeat the new villain in town, Pat and Jen might just have to do the unthinkable--team up with Evil Jen to put a stop to their nemesis before it's too late--