"George and Harold have been turned into evil zombie nerds doomed to roam a devastated, postapocalyptic planet for all eternity! Unfortunately, the boys can't count on Captain Underpants for help because Tippy Tinkletrousers and his time-traveling hijinks prevented George and Harold from creating him in the first place! With Tippy having changed the course of human history forever, George and Harold will have to figure out a way to change it back!"...

Nine years after they came together to defeat the Winter King, John, Jack, and Charles return to the Archipelago of Dreams and face a new challenge involving the Lost Boys and giants.

"Boston, present day. A young man from a shadowy government agency shows up at an Ivy League university and offers an eminent professor a lot of money to study a trove of recently discovered old documents. The only condition: the professor must sign an NDA that would preclude him from publishing his findings, should they be significant. The professor refuses and tells the young man to get lost. On his way out, he bumps into a young woman--a low-on-the-totem-pole...

"Behind the seemingly innocuous facade of St. Mary's Institute of Historical Research, a different kind of academic work is taking place. Just don't call it "time travel"--these historians "investigate major historical events in contemporary time." And they aren't your harmless eccentrics either; a more accurate description, as they ricochet around history, might be unintentional disaster-magnets. The Chronicles of St. Mary's tells the chaotic adventures...

To prevent the destruction of his planet, teenaged Rigg Sessamekesh, who can manipulate time, must assume more responsibility when he and others travel back 11,000 years to the arrival of human starships.

When English teacher Jake Epping discovers a portal to the past he decides to use it to prevent the John F. Kennedy assassination.

Pulled through a glass that brings him back in time, Septimus Heap becomes the apprentice of an alchemist.

The magic tree house takes Jack and Annie back in time to feudal Japan where the siblings learn about the ways of the Ninja.

As Tom and Jamie explore the prehistoric world they found through a secret cave, they hitch a ride on a herd of triceratops.

In this adventure, Jamie and Tess find themselves caught in a terrible storm. During the chaos, a stegosaurus egg is swept away downriver. It's up to Jamie and Tess to recover the egg and return it to its mother before it's too late!--