He left the city and his undertakings half - finished and went home where he died .
For one , he claims that at the city of Urium , Diomedes was making a canal to the sea when he was summoned home to Argos .
Diomedes left the city and Diomedes ' undertakings half - finished and went home where he died .
For one , he claims that at the city of Urium , Diomedes was making a canal to the sea when he was summoned home to Argos .