In rural Ohio, friendships and a beautiful girl prove distracting to a fifteen-year-old who has hidden on Earth for ten years waiting to develop the Legacies, or powers, he will need to rejoin the other six surviving Garde members and fight the Mogadorians who destroyed their planet, Lorien.

After an alien attack devastates the Earth, pilot and future astronaut Clover Martinez bands with seven other teens in a struggle to survive.

After an alien force known as the Icon colonizes Earth, decimating humanity, four surviving teenagers must piece together the mysteries of their pasts--in order to save the future.

"After a year on Mars, a young boy and his family migrate to the planet Choom, but the inhabitants of Choom, the Zhuri, who look like giant mosquitoes, don't really like humans and it up to the boy and his family to change their minds if they hope to survive." --

John--aka Number Four--continues his quest to find the rest of the Lorien Nine before the Mogadorians can, and, with time running out, Number Six goes off alone while John teams up with Number Nine.

It is 2030 and humans are at war with the Bzadians, an alien race which has invaded the Earth. A multinational team of highly trained teenage soliders must slip behind enemy lines and infiltrate a secret alien experimental facility hidden in the Australian desert. One of the team, however, is a spy. Suggested level: intermediate, secondary.

When Jim and Charlie overhear two of their teachers talking in a secret language and the two friends set out to solve the mystery, they do not expect the dire consequences of their actions.

Fighter pilot Spensa Nightshade has been embroiled in an alien empire's war and now, to figure out what she really is, she must leave her world behind to enter the Nowhere, a mysterious realm from which those who enter rarely ever return. As a Defiant Defense Force pilot, Spensa has proved herself one of the best starfighters in the human enclave of Detritus, and traveled light-years as an undercover spy to infiltrate the Superiority, where she learned...

When Nergil's first-grade class concentrates on health and fitness during Martian Health Week, he is very nervous about doing poorly in the upcoming space race.

Hera, pilot of the rebel space ship Ghost, damages the ship against evil Empire fighters and becomes trapped on an alien planet with mysterious monsters.