Grey Griffins — by Derek Benz; J.S. Lewis

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  The Revenge of the Shadow King
  

  • Mar-2006
  • 

  Book - 1
  

  Can the Grey Griffins save their town from the evil Shadow King? Max Sumner and his three best friends, Harley, Ernie, and Natalia--who form the secret club The Grey Griffins--seem to be the only people in their very normal Minnesota town to notic...

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• 

  The Rise of the Black Wolf
  

  • Jan-2007
  • 

  Book - 2
  

  The epic battle against an evil beyond expectation begins... When Max Sumner and his friends, the Grey Griffins, Ernie, Natalia, and Harley, are invited to Lord Sumner's castle in Scotland, they look forward to a relaxing vacation. But things go h...

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• 

  Fall Of The Templar
  

  • Jan-2008
  • 

  Book - 3
  

  Max Sumner and the Grey Griffins must stand together with the Knights of Templar against a deadly evil..... Now, Max, Harley, and Natalia face the greatest challenge of their lives, as Max must come to terms with his father's most wicked betrayal, a...

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• 

  The Brimstone Key
  

  • Jun-2010
  • 

  Book - 4
  

  Max---the leader Natalia---the brains Ernie---the changeling Harley---the muscle A year ago, the Grey Griffins were just regular kids from Avalon, Minnesota. That was before they learned about the existence of evil fairies, werewolves, and other thi...

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• 

  The Relic Hunters
  

  • May-2011
  • 

  Book - 5
  

  In just one semester at Iron Bridge Academy, The Grey Griffins have already had quite an education-clockwork robots, students with super powers, and a hidden land beyond our world where mystical creatures and incredible inventions exist. But as secon...

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• 

  The Paragon Prison
  

  • May-2012
  • 

  Book - 6
  

  A new world means a world of trouble... The Paragon Engine, a machine that can unlock portals to any dimension throughout the universe, is the most powerful and dangerous invention in Templar history-and the Grey Griffins have just been pulled t...

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Series Premise

The Grey Griffins series follows four friends—Max Sumner, Harley Eisenstein, Natalia Romanov, and Ernie Tweeny—who form a secret club after ordinary playing cards filled with mythical creatures begin manifesting in their world. They battle an escalating threat of dark magic, goblins, faeries, and powerful ancient orders while uncovering their own emerging abilities and roles in a hidden conflict between good and evil.

Grey Griffins Series Reading Order

Publication order provides the best experience for the Grey Griffins series. Each book delivers a complete central adventure with its own main threat resolved by the end, yet character relationships, personal growth, and the larger magical conflict build steadily from one volume to the next. Readers who skip ahead will miss the natural progression of the friends’ teamwork, individual power discoveries, and deepening stakes that make later events more meaningful.

Explanation of reading order types

Grey Griffins Series Characters

The core cast centers on Max Sumner (the strategic leader), Harley Eisenstein (the strong, inventive engineer), Natalia Romanov (the sharp-witted detective and researcher), and Ernie Tweeny (the youngest member with shape-shifting abilities). Their distinct roles and evolving friendships drive the action as they face increasingly dangerous supernatural challenges together.

Setting of the Grey Griffins Series

The series begins in a seemingly normal small town in Minnesota before expanding into hidden magical realms, Shadowlands, and specialized academies that exist between the ordinary world and realms of myth and clockwork technology.

Tone & Themes of the Grey Griffins Series

The tone blends fast-paced adventure with mystery and light horror elements suitable for middle-grade readers. Central themes include friendship and teamwork, courage in the face of the unknown, the blurred line between games and reality, and the responsibility that comes with discovering hidden powers.

Is the Grey Griffins Series Worth Reading?

This series appeals to readers who enjoy group adventure stories with strong character dynamics, mythical creatures brought to life, and a mix of modern-day settings with Arthurian and fantasy lore. It suits fans of middle-grade fantasy who like mystery-solving alongside action.

Content Warnings and Heat Level

Mild fantasy violence, scary creatures, and themes of danger and loss; no romance or mature content. Appropriate for ages 8–12 depending on sensitivity to darker magical threats.

The Grey Griffins series offers a compelling entry into children’s fantasy with a focus on found family and epic stakes starting from an everyday card game. Reading the books in order lets the friendships and world unfold naturally, rewarding fans of collaborative hero stories.