★★★★★ Cassie’s world is under assault by alien intruders. It is a world without electricity, which was knocked out by the first wave. The coasts were decimated by tsunamis in the second. Third was a bioweapon in the form of an illness with a 97% kill rate. The fourth wave is Silencers—assassins who exterminate any humans who survived. Cassie is convinced that...

★★★★★ In this fast paced teen dystopian novel, aliens have invaded and Cassie, one of earth's last surviving humans, must fight the odds to rescue her little brother, Sam. Cassie has remained on the run, trusting only herself, since her parents were killed, until she meets Evan Walker. The mysterious Evan may be Cassie's only hope for survival, but is he really...