Although Halloween is not celebrated on the planet Nebulon, Zach, a boy from Earth, discovers that ghosts may be real.

Told in separate voices, eighteen-year-old Tyler Jones, top graduate of Aurora Academy, and a group of misfits and troublemakers embark on their first mission with Auri, a stowaway from the distant past.

Abducted by aliens periodically throughout his youth, Henry Denton is informed by his erstwhile captors that they will end the world in 144 days unless he stops them by deciding that humanity is worth saving.

In 2041 twelve-year-old Dashiell Gibson is a resident of Moon Base Alpha, and at the moment he is faced with a number of problems: coping with the nasty Sjoberg twins, finding out how the commander of the base has managed to disappear from a facility no bigger than a soccer field, and dealing with the alien Zan who communicates with him telepathically from afar--and who is hiding a secret which may threaten the whole Earth.

Follows the efforts of Stuart, his younger sister, and his best friend to locate a missing video-game controller-- a seemingly innocuous mystery that may involve the fate of Earth itself!.

Ten-year-old Portia Bennett and her friend Jason continue to search Toronto for clues to the origin of the purple monster, Jellaby--but things turn dangerous when they are confronted with a tentacled monster with a taste for children.

Prez knows that the best way to keep track of things is to make a list. That's important when you have a grandfather who is constantly forgetting. And it's even more important when your grandfather can't care for you anymore and you have to go live with a foster family out in the country. Prez is still learning to fit in at his new home when he answers the door to meet Sputnik--a kid who is more than a little strange. First, he can hear what Prez...

"Dashiell Gibson, who lives on Moon Base Alpha, has to solve a murder of one of the moon's most prominent doctors"--

Zack's shocked to find a large, green, six-eyed creature sitting in his place at school one morning, but soon learns that he and the "monster" have a lot in common.

When young Zita discovers a device that opens a portal to another place, and her best friend is abducted, she is compelled to set out on a strange journey from star to star in order to get back home.