They accordingly built a fleet at Naupactus , but before they set sail , Aristodemus was struck by lightning ( or shot by Apollo ) and the fleet destroyed .
One of the Heracleidae had slain an Acarnanian soothsayer .
They accordingly built a fleet at Naupactus , but before they set sail , Aristodemus was struck by lightning ( or shot by Apollo ) and the fleet destroyed , because one of the Heracleidae had slain an Acarnanian soothsayer .