The Seventh Stone(1985)

Warren Murphy

Two thousand years is a long time to hold a grudge, but as long as the ancient Wo family’s bloodline flows, the memory of a long-ago slight will never be laid to rest. Passing their secrets from father to son, father to son, countless generations of Wos have built a global network with a single goal: killing the Master of Sinanju.

Remo Williams is The Destroyer, an all-American cop recruited—through highly unorthodox methods—into a secret government law-enforcement organization. Trained in the esoteric martial art of Sinanju by his aged Korean mentor, Chiun, Remo is America's last line of defense against mad scientists, organized crime, ancient undead gods, and anything else that threatens the Constitution. An action-adventure series leavened with social and political satire, the Destroyer novels have been thrilling readers worldwide for decades.