Uneasy about her new substitute teacher, Susan Simmons' suspicions about Mr. Smith are confirmed when she discovers he is an alien determined to bring some sixth-grade specimens back to his planet.

In order to thwart the Mogadorian invasion, a group of the Garde head to a pyramid in Mexico in order to awaken a power that can save the world.

"When Ben Harp sees his teacher's watch crawling across the hallway, he thinks he must be dreaming. But no, he's just seen his first Sneak--an interdimensional mischief-maker that can borrow the form of any ordinary object. He figured this school year would be bad...and he's stuck doing a group project with two similarly friendless girls, Charlotte and Akemi...Now Ben, Charlotte, and Akemi are trying to understand a book that seems to contain a coded...

The Garde, broken and divided, discover that the Mogadorians have commenced their ultimate invasion plans and will stop at nothing to thwart it.

John Smith, known as Number Four, has the power to eliminate the leader of the Mogodorians but needs all who have Legacies to form an army for a final showdown.

"At long last, Hazel and her star-crossed family are finally back, and they’ve made some new...friends?"-- Provided by publisher.

After a meteorite lands in the front yard of their farm, Nathan Gardner and his family find themselves battling a mutant extraterrestrial organism as it infects their minds and bodies, transforming their quiet rural life into a living nightmare.

Collects three novellas that fill in missing parts of the Lorien story, including the truth about the Loric pilots who escaped to Earth and the identity of the mysterious blogger known as GUARD

"Cassie Sullivan, the survivor of an alien invasion, must rescue her young brother from the enemy with help from a boy who may be one of them"-- Provided by publisher.

Sprouting a tail and spikes over the summer before fifth grade, Sawyer, a boy with the dinosaur gene, is bullied in school, but when his tormentors begin to disappear, it is up to Sawyer, his best friend Elliot, and a mysterious new girl to rescue them from a galactically horrible fate.