There he was recognized by Helen , who told him where the Palladium was .
Odysseus , some say , went by night to Troy , and leaving Diomedes waiting , disguised himself and entered the city as a beggar .
There Diomedes was recognized by Helen , who told Diomedes where the Palladium was .
Odysseus , some say , went by night to Troy , and leaving Diomedes waiting , disguised himself and entered the city as a beggar .