Don't get me wrong. The book was good, but it missed one thing: human antagonists. I've read, 'Megalodon: Bloodbath', 'Arachnoid', 'Shredders', 'Scar: A Deep Sea Thriller', and 'Helicoprion'. I loved each one of them, but the thing that attracted me the most were the human villains and not the deadly creatures. The ruthless thugs in 'Megalodon: Bloodbath', Myles, Chris and Jedlinsky in 'Arachnoid', the eco-terrorists in 'Shredders', the ruthless scientist and her mercenaries in 'Scar: A Deep Sea Thriller', and the avaricious bio-terrorists in 'Helicoprion' were the vile characters that attracted my attention the most. It's because I think human villains are the most realistic antagonists in horror books and also because I love to see villains severely pay for their crimes. This book, 'Serpent: A Deep Sea Thriller', had the potential to show human antagonists, but none showed up. I can't help but feel disappointed about that.