The tiger warrior - David J. L Gibbins

1879, Lieutenant John Howard of the Royal Engineers witnesses something unspeakable in the Indian jungle and years later disappears. Present day, Marine archaeologist Jack Howard uncovers something buried deep in the sea floor. It's an earth shattering find starting a journey which takes him across the Silk Route, Ancient China, the Roman Empire and the vast jungles of India. The treasure hunt is inextricably linked to the disappearance of his great-grandfather and he owes it to him to find the truth.
When Jack gets the scent of a trail, a formidable enemy with roots deep in the past is preparing to ride again....