Lord of Waters=Ulmo
Ulmo showed Turgon where to buod Gondolin, an elven city hidden in the mountains (Ered Gorgoroth)
"Shall I leave my friends alone
Hidden in my twilight hall
(I) know the world is lost in fire "
Sounds like Turgon debating whether to help his fellow elves, but he doesn't want to leave his city. He fears by leaving, it will be discovered and it'll be sacked.
The dragon mentioned is Glaurung, the Father of Dragons aka Worm of Morgoth. (Glaurung was a flightless dragon, the winged ones came later)
Lord of Waters=Ulmo Ulmo showed Turgon where to buod Gondolin, an elven city hidden in the mountains (Ered Gorgoroth)
"Shall I leave my friends alone Hidden in my twilight hall (I) know the world is lost in fire "
Sounds like Turgon debating whether to help his fellow elves, but he doesn't want to leave his city. He fears by leaving, it will be discovered and it'll be sacked.
The dragon mentioned is Glaurung, the Father of Dragons aka Worm of Morgoth. (Glaurung was a flightless dragon, the winged ones came later)