theseus then escaped with all of the young athenians and princess ariadne. then, him and the crew fell asleep on the beach on the island of naxos where they stopped on their return. athena woke theseus and told him to leave ariadne for dionysus as naxos was his island. so, theseus returned to athens abandoning ariadne. he also forgot to replace the black sail from the ship with the white one so when his father aegeus saw it he believed his son to be dead and threw himself into the sea, therefore the sea being named the aegean sea.