Jack Higgins: On Dangerous Ground (USA 1995)
From the Publisher:
As 1997 approaches, England's prime minister learns of a secret document signed by Mao Tse-tung that could delay the Chinese takeover of Hong Kong for an additional 100 years. The British hire former terrorist Sean Dillon to keep the document from coming to light, before parties in Hong Kong retrieve it and destroy the balance of world power.
Jack Higgins: On Dangerous Ground. Berkley Publishing Group, ISBN: 0425148289 (July, 1995), 325 p., $7.99.