Ever since Martin Banks and his fellow computer geeks discovered that reality is just a computer program to be happily hacked, they've been jaunting back and forth through time, posing as medieval wizards and having the epic adventures that other nerds can only dream of having. But even in their wildest fantasies, they never expected to end up at the mercy of the former apprentice whom they sent to prison for gross misuse of magic and all-around evil behavior.

When you discover the world is a computer program, and you figure out that by altering the code you can time travel and perform acts that seem like magic, what can possibly go wrong? Pretty much everything. Just ask Brit, who has jumped around in time with such abandon that she has to coexist with multiple versions of herself. Now, Brit the Elder finds that her memories don't match Brit the Younger's.

A month has passed since Martin helped to defeat the evil programmer Jimmy, and things couldn't be going better. Except for his love life, that is. Feeling distant and lost, Gwen has journeyed to Atlantis, a tolerant and benevolent kingdom governed by the Sorceresses, and a place known to be a safe haven to all female time-travelers.

Mattie and Brewster are normal, typical 16-year-old twins who live with their normal, boring parents: Martin and Gwen Banks. Normal and boring, that is, until the day their father's best friend shows up at their house - dressed in what appears to be a bathrobe. The next thing Mattie and Brewster know, their parents are frozen like human statues in their living room, the guy in the bathrobe has vanished, and they need to find answers - fast.   

It's a simple story. Boy finds proof that reality is a computer program. Boy uses program to manipulate time and space. Boy gets in trouble. Boy flees back in time to Medieval England to live as a wizard while he tries to think of a way to fix things. Boy gets in more trouble. Oh, and boy meets girl at some point.

Even when finding oneself engaged in interstellar war, good form must be observed. Our story is set thousands of years after the Terran Exodus, where two powerful, planet-dominating families - the elegant House Jakabitus and the less refined Hahn Empire - have reached a critical point in their generations-long war. Master Hennik, the Hahn ruler's only son, has been captured, and the disposition of his internment may represent a last and welcome chance for peace.

The battlefield realm: a realm where sects rise and fall. Where the ground trembles under the feet of fighters from the higher realms. Where riches are gained and empires lost. This is where Erik and Rugrat must go, if they want to increase their strength and the strength of Alva. They say that fortune favors the bold. This is the ten realms. To the victor go the spoils. The fourth realm will change their lives...or end them.

After saving the world many times, the Merry Band of Pirates have accepted the inevitable: Earth is doomed. All they can do is try to bring a few thousand people to safety, before vicious aliens arrive to destroy humanity's home world. No. There is one other thing they can do: hit the enemy so hard that the aliens will regret they ever heard of humans.

After the Renegade mission by the crew of the starship Flying Dutchman, the UN Expeditionary Force thought Earth was safe for hundreds of years, at least. After there was trouble on the home front, and the president had to authorize a nuclear strike on an American city, UNEF decided they did need the Merry Band of Pirates again. So, the Flying Dutchman is sent out on a simple recon mission. But for the pirates, nothing is ever simple, and their mission will become Armageddon.

When an experiment to study quantum uncertainty goes spectacularly wrong, physics student Bill Rustad and his friends find that they have accidentally created an inter-dimensional portal. They connect to Outland - an alternate Earth with identical geology, but where humans never evolved. The group races to establish control of the portal before the government, the military, or evildoers can take it away. Then everything changes when the Yellowstone supervolcano erupts in an explosion large enough to destroy civilization and kill half the planet.

For thousands of years, there has been a cycle: a Demon King rises and conquers, and a Hero is reborn a hundred years later to defeat him. Each time, civilizations are ground to dust beneath the Demon King's hordes, but humanity has remained secure in the belief that a Hero of legend will always save them. There's just one slight problem. It's only been 23 years since the Demon King's latest rise, and this time, he's already conquered more than half the world. If humanity simply waits for the Hero's return, there may be no world left for him to save.

Dennis E. Taylor, author of the best-selling Bobiverse trilogy, explores a whole different, darker world in this sci-fi stand-alone. Determined to give his wife and children a better life back home, Ivan Pritchard ventures to the edge of known space to join the crew of the Mad Astra as an asteroid miner. He's prepared for hard work and loneliness—but not the unthinkable. After coming into contact with a mysterious alien substance, Pritchard finds an unwelcome entity sharing his mind, and a disturbing physical transformation taking place.  

With the third realm, new challenges arise. Erik searches for Old Hei while Rugrat deals with his broken mana system. For both, their path takes them toward the alchemist association's trial. They didn't mean to get into trouble, they swear, but in the ten realms, trouble is not far behind the duo. They'll have to fight across the third realm to complete the alchemist association's trial.

The citizens of Azurvale are starting to feel the pressure. War with the Empire to the south is imminent, and there's talk of the city's adventurers being drafted into the campaign. Though this conflict seems inevitable and promises to be horrific, the common folk can do little but act like there's nothing wrong. Rather than lose sleep over something so wildly out of their control, they instead worry about tiny, personal, inconsequential issues. However, the people of Azurvale have yet to find out that their capital is already under threat.

Bob Johansson didn't believe in an afterlife, so waking up after being killed in a car accident was a shock. To add to the surprise, he is now a sentient computer and the controlling intelligence for a Von Neumann probe.