Heaven's Edge is unique--it is not a romance, not a war chronicle, not a religious allegory, not a plea for ecological responsibility, and not science fiction, though it contains elements of all these genre. Marc, a young college graduate from London, has returned to an unnamed island, much like the author's island of Sri Lanka, on a mission to connect with his father's memory. His father, a military pilot, left the family in England when Marc was a very young child and returned to the island where he died while on a mission. Marc's doting grandfather, who raised him, never understood what drove his son to return to the very island he himself had escaped.