A group of children and a "spirit" go back through time to discover the beginnings of Halloween.

Meg Murry and her friends become involved with unearthly strangers and a search for Meg's father, who has disappeared while engaged in secret work for the government. It was a dark and stormy night Meg Murry, her small brother Charles Wallace, and her mother had come down to the kitchen for a midnight snack when they were upset by the arrival of a most disturbing stranger. "Wild nights are my glory," the unearthly stranger told them. "I just got caught...

The evil Muns tries to convert Abby into helping him change the history of the world while her and Derick's grandfather asks Derick to finish a challenge that a trusted teacher was never able finish.

When twins Abby and Derick start junior high at the prestigious academy their grandfather founded, Cragbridge Hall, they discover firsthand the dangers of time travel and must find a way to save their parents, who have been sent to the Titanic the night it sank.

"Elliott Harkness is a little rusty after recovering from his injury. Unfortunately, there's no time to rest because fugitives from Lockdown are still on the loose after the battle with Meta-Man. But when Elliott encounters a bad guy who has mysteriously come back from the dead, he realizes he's got bigger problems on his hands. Tormentus, the Underworld's Snatcher of Souls, has resurfaced! He's declared war on humanity and unleashed an army of Meta...

"Elliott Harkness still has lots to learn. After all, not everyone loves superheroes. And when Elliott damages Keystone City's subway system while stopping a pair of dangerous villains, he's suddenly identified as a menace to society! Elliott is scheduled to explain his actions on national television, but before he can defend himself, he's captured by Intergalactic Paladins and brought before a council of aliens who believe Elliott is responsible...

In 1940, when Delphi Keep is taken over by the Royal Navy as a communications outpost, Ian, Theo, and Carl dread being evacuated to the earl's winter residence where they will no longer be protected, but even more concerned about deciphering the third prophecy and identifying the Secret Keeper.