Quest for Lost Heroes
Quest for Lost Heroes, published in 1990, is a novel by British fantasy writer David Gemmell. It is the fourth entry in the Drenai series. The story is set several decades after and makes several references to the events in Gemmell's earlier title, The King Beyond the Gate. It also provides a conclusion to the story of Tenaka Khan, one of the main protagonists of The King Beyond the Gate.

Summary 
The Drenai Empire no longer exists: Tanaka Khan's Nadirs have invaded the entire continent. Only the small kingdom of Gothir has resisted the invaders, thanks to the heroes of the Battle of Bel-Azar. 

These heroes of the past include Charéos, a fine duelist entrenched in a monastery in the service of the Count of Talgithir, Beltzer, a peasant who turned out to be a fierce warrior with an axe, and two others, Finn and Maggrig, renowned archers.

These former heroes will be drawn into the quest of Kiall, a young villager from the kingdom of Gothir, who has vowed to rescue Ravenna, another villager captured by slavers with whom he believes he is in love.

Young Kiall soon discovers the gap between the glorious songs about heroes and reality.

References 

1990 British novels
British fantasy novels
Drenai
Novels by David Gemmell
Legend Books books