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.

The Garde is hopelessly outmatched by the annihilating Mogadorian ruler and draws unexpectedly close to finding the last remaining member of their group of alien survivors.

Alien scenes invite readers to search for objects hidden within them.

In a Spanish convent, seventeen-year-old Marina longs to join forces with her fellow Loriens to prepare for battle with the Mogadorians who destroyed their home planet, while in the United States, John, Six, and Sam elude authorities who think John is a terrorist.

When the Pearsons move into their vacation home, they find alien creatures determined to take over Earth.

"When a social media star named Lux claims the Mega Vortex ride is actually an alien spaceship, people believe him and stop riding it. He also says the aliens gave him superpowers to use in the Waldameer arcade. Seth and Julia are doubtful, but Lux proves it by playing countless perfect games of Skee-ball. Does Lux have Skee-ball superpowers, or is he cheating? Aliens can't really be at Waldameer, can they? The detectives need to figure out what's...

Jake Foster, a shapeshifting alien of goo disguised as a human, and his spunky friend Agnes investigate the mysterious takeover of their neighbors by "imblobsters" and uncover the reason Jake is losing control of his ability to keep his human shape.

Snake's terrible powers are revealed while Agent Fox suddenly has a whole lot more backstory than expected.

"Pop quiz! You are on the roof of a skyscraper. Every floor of that building has nasty things that just don't like you. And you really need to get to the basement. Whaddaya do?! (And no, you can't just join the B-Team and fly away in their glamorous new spaceship.) Think quick, chico, because the multiverse is getting worse!"

Buzz is filming a movie about aliens from Outer Space, who capture Fly Guy and Buzz Boy--and our two heroes must outsmart the aliens, with some help from Dragon Dude and Fly Girl.