Drinnnok, aided by Hokuu, plans to free his prehistoric monsters and destroy Gary.

Since the dawn of time, prehistoric shark clans called Shivers have ruled over the earth's oceans, fierce protectors of all who swim. For eons, the Big Blue has prospered under Shiver Law, and the delicate balance of sea life kept sacred. Until now. Rising sea temperatures and overfishing have caused food to become scarce, and the battle for new hunting grounds has brought with it corruption and warfare. Now, with the ocean on the brink of chaos, a young reef shark named Gray - exiled from the safety of his peaceful reef home - must venture deep into Open Water to unlock the secrets of his destiny and bring peace back to the ocean. But first, he'll have to discover the truth about who - and what - he really is.

Newly appointed ocean ruler Gray prepares for an ultimate showdown with the evil Grimkahn while he outmaneuvers the sneaky frilled shark, Hokuu.

As the first Shark Wars series arc draws to a close, hero Gray unexpectedly finds himself the ruler of the ocean. He's got to make wise decisions in a time of upheaval and isn't sure if he's up to the task! Dangerous prehistores are loose in the Big Blue, and Gray must defeat their evil leader, Grimkahn. But if he is to do that, he and Barkley must first outsmart the sneaky and dangerous frilled shark, Hokuu. . . .

Fans of Beast Quest, TVs Deadly 60 and fantasy action adventures will all love the Shark Wars series. The perfect books for young readers of 8+ to get some very sharp teeth into! Save Your Friends. Rule the Ocean. Peace has finally come to the Big Blue and with it a revelation: Gray is not the last megalodon in the ocean after all. Gray swims deeper into the mystery of his family heritage, uncovering the myth of the megalodons and a legend that goes back to prehistoric times. But when the scheming Mako Velenka breaks free from her underwater prison, the peace Gray and Barkley have fought so hard to win is threatened. E.J. Altbacker is a screenwriter whose credits include work on various television programmes including Spider-Man and Extreme Ghostbusters.

Gray, Barkley, and the alliance of Rogue, Coral, and AuzyAuzy Shivers have defeated the maniacal emperor Finnivus and his vicious Indi Shiver armada. But Finnivus is still plotting. This is the ruler who feasts on the heads of every shark he conquers, after all. When Finnivus's gangs of soldier fish strike, Gray and his friends endure a loss bigger than any before. And this time there's no one left to tell Gray what to do. He's got to lead the rebels into battle for the ultimate fight of good against evil. The fate of the Big Blue rests with Gray! Shark Wars is Star Wars set underwater, the perfect series for the voracious fans of Warriors, Seekers, and The Guardians of Ga'Hoole!

Would a giant squid stand a chance against a whopping whale? Which is the deadliest shark in the world? We all know the ocean can be dangerous but what kind of creatures are really lurking in the deep and who would come out on top in a battle of tentacles, teeth and traps? This stunning book takes a dive into the depths of the sea and uncovers the terrifying wars taking place beneath the surface of the water, with amazing CGI artwork accompanied by battle statistics, fearsome facts and much more.

Each new Shark Wars book brings higher stakes--and hungrier sharks! Gray thought he could trust Takiza, the wise yet mysterious betta fish who's been his guide and mentor in the often treacherous depths of the Big Blue. But the news that Takiza was responsible for the death of Gray's father has shaken Gray to his very core. Now Gray is questioning everything he thought he knew. The time to find answers is running short. The prehistores--prehistoric sea monsters long thought to be extinct--are breaking out of the underwater volcano range that has kept them hidden for millennia. Gray, Barkley, and their friends and shivermates must prepare for a war unlike any they've faced before! Shark Wars is Star Wars set underwater--it's a modern-day Warriors for today's voracious readers!

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Shark Wars grows more epic--and addictive--with every book, publishing each season! Peace has finally come to the Big Blue and with it a revelation: Gray is not the last megalodon in the ocean after all. Gray swims deeper into the mystery of his family heritage, uncovering the myth of the megalodons and a legend that goes back to prehistoric times. But when the scheming mako Velenka breaks free from her underwater prison, the peace Gray and Barkley have fought so hard to win is threatened. Shark Wars is Star Wars set underwater--it's a modern-day Warriors for today's hungry readers!