The Chronicles of Conan Volume 27: Sands Upon the Earth and Other Stories

He is known as "The Great Devil"--Heku, warlord of the eastern kingdoms, commander of a horde likened to the sands upon the earth. More than conquest, Heku desires the return of his son, Kobe, once coldly given as a gift to a king but now Conan's comrade and unwilling to return to his father's evil embrace. All Kobe has between him and Heku's host is his sword and Conan's friendship, a bond stronger than steel! 
The Chronicles of Conan collects classic Conan the Barbarian tales never-before collected and unavailable for over a quarter of a century.