The Ultros was a great ship built by the Dragonlords to sail the seas protected from Sydon. The last Commander of the Ultros was Estor Arkelander; but both went missing many centuries ago.
The tree of Demetria's sister was used as the figurehead for this boat; an act which sent the Nymph spiralling into madness.
Recent rumors say that the boat has been seen at the Dead Falls in the Eastern Heartlands, moored on the River Leth. The Oracle's Chosen followed the rumours and found the blood-stained ship to be inhabited by all manner of undead.