Rick Yancey was the author of The 5th Wave. Rick Yancey is a writer who works on books for young adults. His books are usually fantasy, science fiction, and suspense.In the science fotion novel The 5th Wave, aliens invade the earth, bringing death and destruction in five well orginized waves. During the first wave, an EMP( Electromagnetic pulse) destroys all electronics on earth. In the second wave, a massive bar is dropped from space that causes total destruction on every coastline in the world. The third wave occurs when a modified Ebola virus wipes out more than seven billion people. Then, in the fourth wave it is discovered that some humans are hosts to the alien forms. And that 's where cassie the main character comes in. she has survived