At the end they both went their separate ways.
Vacuse went with the Morrowling, and when Eloryna saw him she shouted and insisted that he was hers and that he should leave him. She wanted to use the Iron Knight to get him, but that was one thing that Vacuse was insisting on.
In fact, he took all the slaves with him, and the Iron Knight let him simply because he deemed it Vacuse's right for bursting the Ash Rats.
Eloryna left sullen and angry, but she dared not do anything, not when there was a Sovereign Ascended right there.
Vacuse left for his own territory with a troubled mind as well. Although he had gained a lot through the Ash Rats, he was weary of the Iron Knight.
He was the first Sovereign Ascended that Vacuse would be meeting, after all. Jellyfish did not count because the bastard hid his power too much for him to feel anything.
And Drenvar... he was not a full Sovereign Ascended yet.
