Douglas Holgate

"After a monster apocalypse hits town, average thirteen-year-old Jack Sullivan builds a team of friends to help slay the eerily intelligent monster known as Blarg"--

"After the monster apocalypse, Jack Sullivan has been having an awesome time living in a tree house with his three best friends. But when zombies start mysteriously disappearing, Jack and his friends suspect that an extremely evil force is at work"--

During the first winter after the Monster Apocalypse, Jack and his buddies prepare for a monstrous Christmas celebration, but a supervillainess steals Jack's prized monster-slaying weapon, his Louisville Slicer, and he vows to get it back.

"Now wielding the Midnight Blade, Jack Sullivan and the gang are furiously searching for the villainous Thrull and his skeleton army. The clock is ticking: the enemy has begun constructing the Tower--a portal with the power to bring Rezzoch the Ancient, Destructor of Worlds, to our dimension. Equipped with a crucial clue discovered by June on her Wild Flight, the group does the once-unthinkable: they leave Wakefield behind and embark on an...epic...

Picking up after Quint and Dirk's Hero Quest, the Last Kids are happily reunited--but quickly faced with a monstrous new mission. Inside an other-dimensional fortress, the evil Thrull, alongside a vile new villain, is carrying out a sinister plan. Jack, Quint, June and Dirk must make their own plans to infiltrate the stronghold before Thrull gets any closer to completing the mysterious Tower, a structure that could ultimately spell doom for this dimension....

Starring in their own epic adventure, dynamic duo Quint Baker and Dirk Savage encounter new monsters and embark on a post-apocalyptic quest for the ages.

While the kids get to work, their superhero alter-egos make a startling discovery: supervillains do not come up with their own evil plans! The shocking truth? Every supervillain scheme comes from the mind of a single, mysterious bad guy.

"The last kids may have escaped the forbidden fortress by the skin of their teeth, but there isn't much to celebrate. Thrull has what he needs to complete the Tower, Rezzoch will most certainly come to Earth, and the world as they know it will cease to exist. Except Jack's Cosmic Hand is now even more powerful than he realized, and it might just be able to stop the inevitable from happening. To get the answers he seeks, he'll need to travel farther...

"Twelve-year-old Kyle gets to stay overnight in the new town library, designed by his hero (the famous gamemaker Luigi Lemoncello), with other students but finds that come morning he must work with friends to solve puzzles in order to escape"--