Sixteen-year-old Lyric Walker’s life is forever changed when she witnesses the arrival of 30,000 Alpha, a five-nation race of ocean-dwelling warriors, on her beach in Coney Island. The world’s initial wonder and awe over the Alpha quickly turns ugly and paranoid and violent, and Lyric’s small town transforms into a military zone with humans on one side and Alpha on the other. When Lyric is recruited to help the crown prince, a boy named Fathom, assimilate, she begins to fall for him. But their love is a dangerous one, and there are forces on both sides working to keep them apart. Only, what if the Alpha are not actually the enemy? What if they are in fact humanity’s only hope of survival? Because the real enemy is coming. And it’s more terrifying than anything the world has ever seen. Action, suspense, and romance whirlpool dangerously in this cinematic saga, a blend of District 9 and The Outsiders.

In the first book of Michael Buckley’s Undertow trilogy, the Alpha arrived and the world was never the same. At the start of the second book, most of south Brooklyn is in ruins and the nation is terrified. Nearly everyone that Lyric Walker loves is either missing or presumed dead, including the mesmerizing prince Fathom. It’s up to Lyric to unite the Alpha before the second wave of a cataclysmic invasion wipes out mankind for good. The Undertow trilogy is an unforgettable reading experience that author E. Lockhart calls, "Allegorical and romantic, the book nevertheless reads like an action movie with especially awesome CGI."

“There’s something out in that water. Be ready to take the people you love and leave when it comes onshore.” For three months, Lyric Walker has been trapped in the hunting grounds, the Alpha city at the bottom of the ocean. But Lyric Walker, Brooklyn girl, is not going down without a fight. She makes an unlikely alliance with her jailor, a Rusalka named Husk. Husk reveals the truth about what actually resides in the Great Abyss. The Great Abyss is not some Alpha god but belongs to an unknown clan of monsters, ones who think in a hive mentality and believe anyone who cannot hear their voice is broken and must be destroyed. And Lyric has just woken them. After a death-defying escape, Lyric makes her journey back to the mainland to prepare humanity for another monster invasion. Once reunited with her parents, Bex, and hot-nerd-with-potential Riley, Lyric has to break the terrible truth. Lyric was just a girl when the Alpha arrived in her hometown. She was a soldier in the second attack that saved her world. What will she have to become now, and who will she have to leave behind?