On the Charge
A deadly game of cat and mouse reaches an explosive climax.
Ryan Kaine's pursuit of justice takes a dangerous turn as he targets Gregory Enderby, deputy head of the National Counter Terrorism Agency. Kaine's audacious plan to abduct Enderby and uncover the truth behind the Grey Notice on his head leads to a series of high-stakes confrontations and shocking revelations.
As Kaine and his team navigate a web of corruption reaching the highest levels of government, they must outwit not only Enderby but also the mysterious Jay Wyndham and his ruthless Praetorian Guard.
With each move, the stakes grow higher and the danger more intense.
Kaine must expose the conspiracy before his enemies can silence him for good.
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More than half a million Ryan Kaine books sold.
More than ten thousand five-star ratings.
★★★★★ One book and I’m a huge fan
★★★★★ …Pacy, hard hitting, excellent plot, great characters both men and women.
★★★★★ A good weave of high tech, corrupt business and vigilante action.
★★★★★ …amazing read, cannot wait for the next one.
★★★★★ Could not put this down. Absolutely brilliant writing, non stop action. On a par with Jack Reacher stories
★★★★★ On par with Lee Child. I will be buying the full series.
★★★★★ Superb book - it’s filled the gap left by ... Jack Reacher.
★★★★★ Brilliant, fantastic. A fantastic story line I didn't want to put it down just on the go all the time. I've just got the next 2 books and can't wait to get started on them.
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Kerry J. Donovan
Kerry J. Donovan is a storyteller who brings gritty, pulse-pounding narratives to life with a blend of intense suspense and heart-pounding drama. Writing primarily within the thriller and crime genres, she expertly balances complex characters with twisty plots that leave readers eagerly turning pages.
A former businesswoman, Kerry’s transition to writing wasn’t a sudden leap but rather the culmination of years spent honing her craft. Her personal experiences and keen eye for detail have shaped her stories, making them feel grounded in reality even as they delve into dark and twisted territories. Born and raised in Ireland, her love of mystery and intrigue draws inspiration from the world around her, often blending the rich historical layers of her homeland with contemporary, fast-paced storytelling.
Ryan Kaine
In a world where danger lurks at every corner and justice is often more elusive than it should be, Ryan Kaine is the man you want on your side. A former military operative turned private investigator, Kaine brings a lethal combination of skill, intelligence, and an unyielding sense of duty to every case. The series, a gripping blend of fast-paced action and complex intrigue, takes readers through intense, high-stakes missions that test Kaine’s limits—physically and emotionally.
Ryan Kaine consists of fourteen books and series is set to expand with the upcoming release of one more book. The current recommended reading order for the series is provided below.

