"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"--

A UFO crashes in the Midwest, not far from the boarding school attended by Alice, whose father is the director of special projects at NASA.

When Paige Miller went to sleep, trying to stave off the flu, she had a mother, a stepfather, a younger brother, a basketball team on its way to the state championship, and a scholarship to UConn in the fall. When she wakes up, it's all gone. Her dreams for the future. Her best friend. Her family. Everyone in the whole world. Now Paige is alone, her hometown filled with scavenger birds, with abandoned cars, with silence, with darkness, with corpses....

"Spensa has made it to the sky, but the truths she learned there about her world show that everything she knows has been a lie. Now, Spensa must travel to the end of the galaxy if she is to ever save humankind, which may prove not only impossible, but deadly"--

"Is this the end? What happens when you ask a bunch of losers, discipline cases, and misfits to save the galaxy from an ancient evil? The ancient evil wins, of course. Wait...Not. So. Fast. When we last saw Squad 312, they were freaking out working together seamlessly as an intergalactic battle raged and an ancient superweapon threatened to obliterate Earth. Everything went horribly wrong, naturally. But as it turns out, not all endings are endings,...

"Three years ago, aliens invaded Earth and abducted everyone they deemed useful. The only ones spared were those too young, too old, or too "disabled" to be of value. Living on Earth under the aliens' harsh authoritarian rule, humanity's rejects do their best to survive. Their captors never considered them a threat--until now. Twins Sam and Wyatt are ready to chuck their labels and start a revolution. It's time for the kids last picked to step into...