Landslide is a first-person narrative novel written by English author Desmond Bagley, and was first published in 1967.

This story revolves around the protagonist, Bob Boyd, who is a geologist and works in British Columbia timber country.

However at that time John Trinavant had died in an auto crash along with his son (Frank) and wife.

After completing the survey he reports back to Howard that nothing of value lied below their land, and collects his pay-check and leaves.

It is revealed that Bob Boyd is indeed none other than Robert Grant who was riding with the Trinavants when the car crashed and the other 3 occupants died.

But Bob insists on knowing about his past and so Susskind tells him that he used to be a college student and had a broken family and criminal history.

After a little time Bob is able to go back to normal life and works in the northern Canadian territories as a prospector.

After hearing this Bob starts to spread the word in Fort Farrell that he is the survivor of the crash in which the Trinavant family died to see the reaction of the Mattersons.

Bull inform him that he knows Bob is actually Robert Grant and could get him thrown in jail because of his past criminal record.

Meanwhile, Bob asks Clare her if he can survey her share of the land adjoining the Matterson's dam because it would be flooded soon.

Eventually, Bob is able to escape and reach the Matterson home where Bull is recuperating from his heart attack.

Bob races towards the Matterson dam and orders everyone to evacuate due to the danger of quick clay.