Michael Buckley's two middle grade series, the Sisters Grimm and NERDS, have sold more than 2.5 million copies. He has also worked as a stand-up comic, television writer, pasta maker, and a singer in a punk rock band. He lives in Brooklyn, New York, with his wife, Alison, and their son, Finn. Visit his website at .

In the epic conclusion of this dystopian trilogy, nail-baiting action and romance abound as a half-human teen faces terrifying monsters from the deep.

After seven months as a captive of Minerva, the insane Alpha queen, Lyric Walker has escaped to the surface. Her only goal is to warn the world about the Great Abyss. When she finally arrives back in Coney Island, she discovers a world she never expected, one where humans and Alpha are finally working hand in hand to rebuild the country. But she soon discovers that an old enemy allied with an old friend may kill them all before the monsters get their turn. There's no telling where Lyric's loyalties, and her heart, will lead her…

"A series ender packed with action, scary enemies, and satisfying character arcs."-Kirkus Reviews