After another spinning, sliding journey across worlds, the Greystone kids must solve mysteries that have haunted them since the beginning: what happened when the Gustanos were kidnapped, what created the alternate world, and how a group of mismatched kids can triumph once and for all against an evil force that seems to have total control.

A collection of ten spooky tales.

"When shy 6th-grade shutterbug Whit Garcia starts middle school, he's forced to join a yearbook club with three other weirdos who will never be voted "most likely to succeed." But after the ghosts of missing students start haunting them, Whit, Hester, Hillary and Press must solve the supernatural secret behind these spirits - or their yearbook club will be voted most likely to join them. But are these ghostly students the real bad guys? Or are they...

In 1810, Lucy Bluecrowne, twelve, is bored living ashore with her stepmother and half-brother until two nefarious strangers identify her little brother as the pyrotechnical prodigy they need for their evil plan.

Now in Paris with her parents who are filming their TV show about the world's haunted cities, Cassidy Blake (who can see ghosts) and her friend Jacob (who is a ghost) are alert for trouble, especially when the filming takes them into the underground Catacombs, the empire of the dead, where Cassidy accidentally awakens a powerful poltergeist spirit--one whose mystery she must solve before his power in unleashed on the whole city.

Arthur Penhaligon is supposed to die at a young age, but is saved by a key that is shaped like the minute hand of a clock. The key causes bizarre creatures to come from another realm, bringing with them a plague. A man named Mister Monday will stop at nothing to get the key back. Arthur goes to a mysterious house that only he can see, so that he can learn the truth about himself and the key.

"If Mari Feijoo could, she would turn her family's Peak Cubanity down a notch, just enough so that her snooping neighbor and classmate Mykenzye wouldn't have anything to tease her about. That's why this year, there's no way that Mari's joining in on one of the big-gest Feijoo family traditions--burning the New Year's Eve effigy her abuela makes. Only Mari never suspects that failing to toss her effigy in the fire would bring something much worse than...

Seventh-grader Molly has always been an outsider, even at New York City's elite Metropolitan Institute of Science and Technology, but that changes when she is recruited to join the Omegas, a secret group that polices and protects zombies.

"Molly Bigelow and her Omega team have been banned from investigating Marek Blackwell and his plans for New York City. But when they discover that Blackwell is raising money for a zombie army they have to act. But will they be in time?"--

Bestselling author David Rain returns to help Lucy and the Pennykettle dragons try to find and destroy a drop of dark fire before it is discovered and used to birth a darkling, while in the Arctic, enshrouded in mist, hide dragons that have at last returned to Earth.