Every Silver Gravity story centres women with agency.
A legendary sword. A forbidden attraction. A race through the shadows of modern Japan.
Former Navy SEAL Jack Fletcher arrived in Japan looking for redemption. What he found was a mission he never expected, and a woman who would challenge everything he thought he knew about duty, desire, and the cost of survival.
Dr Aura Tanaka is a brilliant historian with everything to lose. Her family's legacy is bound to a mythical relic, the Sword of the Shogun, a blade said to channel the spirits of emperors, and ruthless forces will stop at nothing to claim it first. When fate throws Jack and Aura together, their only chance is to trust each other completely. In a world where ancient legend collides with modern danger, that trust may be the most dangerous gamble of all.
From the neon-lit chaos of Shibuya Crossing to the mist-shrouded monasteries of Koya-san, from Kyoto's lantern-lit tea houses to the secret catacombs beneath the Imperial Palace, Sword of Shogun is a high-octane adventure steeped in Japanese culture, history, and the slow-burn tension of two people who should not fall for each other — and absolutely do.
About the Book
Jack Fletcher is haunted by the mission that broke him. Aura Tanaka is fighting to protect a legacy that could rewrite history. Together, they must outwit a Yakuza cartel, decode an ancient map, and recover a relic that has been hidden for centuries, all while navigating an attraction neither of them can afford.
As they scale the treacherous slopes of Mount Fuji and infiltrate a Yakuza masquerade in Osaka, the line between the mission and something far more personal begins to blur. Betrayal lurks at every turn. And the sword, when they find it, may demand a price neither is prepared to pay.
Rich in Japanese mythology, cinematic action, and a romance that earns every beat, Sword of Shogun is the fourth book in the Heart & Treasure series, and can be read as a thrilling standalone adventure.
Perfect for fans of Clive Cussler, James Rollins, and Diana Gabaldon. If you love globe-trotting treasure hunts, slow-burn romance, and heroes and heroines who are equally matched in wit and courage, this is your next read.
Early Reader Praise
"A breathtaking blend of Japanese folklore, high-stakes adventure and fiery romance — Sword of the Shogun had me turning pages long into the night."
"Jack and Aura's chemistry leaps off the page. The action scenes are cinematic, and the depiction of Kyoto's hidden corners is sublime."
"A perfect mix of Clive Cussler-style treasure hunting and contemporary romantic suspense. I can't wait for the next Heart & Treasure novel!"
Featured Locations
Tokyo, Shibuya Crossing — Where Jack intercepts an arms deal and uncovers the first clue to the sword's location.
Kyoto Tea House — A lantern-lit meeting place where Jack and Aura clash for the first time — and are forced to flee together.
Nara Temples — Ancient stone statues inscribed with riddles that hold the key to the sword's hiding place.
Osaka Underworld Masquerade — A Yakuza auction disguised as an elegant masked ball, where Jack and Aura must pose as lovers.
Koya-san Monastery — A misty mountain retreat where a monk reveals the sword's true and terrifying power.
Imperial Palace Catacombs — Secret tunnels beneath Kyoto where the sword was once concealed — and where the mission reaches its most dangerous turning point.
Japanese Alps Fortress — The final showdown: ancient Shinto architecture meets cutting-edge security in a race against time.
Meet the Author: Cora Price
Cora Price writes pulse-pounding action-adventure romances that transport readers to extraordinary locations around the world. Her stories blend archaeological mystery, heart-stopping danger, and sizzling chemistry between brilliant heroines and rugged heroes who challenge each other at every turn.
Inspired by ancient myths, lost civilisations, and the thrill of discovery, Cora crafts tales where love and adventure are inseparable. When not writing, she is researching forgotten legends, planning her next expedition, or dreaming up her next treasure hunt romance.
