Book cover for Edge of Extinction #2: Code Name Flood by Laura Martin

Edge of Extinction #2: Code Name Flood

2017 Released
352 Pages
4-5 Hours
★ 4.25 845 ratings
Hardback Unavailable
HarperCollinsISBN 9780062416278

Perfect for fans of Jurassic Park and Jurassic World! Code Name Flood is the electrifying sequel to The Ark Plan, which School Library Journal praised by saying: “Nonstop action, marauding dinosaurs, and kids on the run: What’s not to like?”

Last week, twelve-year-old Sky found a cryptic message from her dad, who mysteriously fled the safety of their underground compound five years ago. The note said the fate of the world depended on her going topside, to a lost world that’s ruled by dinosaurs.

Today, after a treacherous journey through the wilderness, Sky and her friends have made it to their destination: Lake Michigan. There they discover a hidden underwater lab, and with the help of its scientists, Sky will finally learn the truth about her father’s secret mission.

Tomorrow, it will be up to Sky and her friends to save humanity from the very edge of extinction.

Readers who enjoy middle grade adventures by Brandon Mull and Rick Riordan will love this action-packed story, which takes the premise of Michael Crichton’s bestselling classic to a whole new level, envisioning a postapocalyptic future where cloned dinosaurs have taken over and the world’s only hope is one group of courageous kids.


But with terrifying new dinosaurs and a powerful enemy closing in, will they find the truth before it’s too late?


  • A Dangerous Quest: Join twelve-year-old Sky as she follows a cryptic message from her father into a post-apocalyptic world ruled by resurrected dinosaurs.
  • A Secret Underwater Lab: Uncover the mysteries of a top-secret facility at the bottom of Lake Michigan where scientists are creating new prehistoric creatures.
  • A High-Stakes Mission: With ruthless soldiers and terrifying predators closing in, Sky and her friends must unravel a conspiracy that threatens all of humanity.
  • An Action-Packed Series: Perfect for fans of Jurassic Park and adventure stories by Rick Riordan, this electrifying sequel is a true page-turner.

Laura Martin

Laura Martin writes historical romances with an adventurous undercurrent. When not writing she spends her time working as a doctor in Cambridgeshire, where she lives with her husband. In her spare moments Laura loves to lose herself in a book, and has been known to read from cover to cover in a single day when the story is particularly gripping. She also loves to travel—especially to visit historical sites and far-flung shores.

More by Laura Martin

Why Readwise Books?

Readwise Books is an ebook & audiobook platform that automatically logs how much you and your friends read, making it fun and easy to read more. Learn more →