Source: The Infernal Syndrome, pg(s). 89
According to ancient legend, the devil Alichino tasked the legendary Jistkan hero Strada with the conquest of an invincible city. Strada sought the help of an oracle of Gorum and was given the thousand fangs of the dragon Kathalphas. When Strada sowed the teeth into the ground outside the city as instructed, all the heroes the dragon had devoured sprang up into battle. Having frustrated the devil, Strada ruled the city for 90 years with the skeletal army as guard. Magical spartoi seeds that temporarily summon the skeletal undead warriors known as spartaloi have been created since in memory of this legend.