There comes a time when Óðinn asks Vili how feasible it would be to kill Ymir.
"Why did it have to go somewhere? Why couldn't it just have been destroyed?"
"Where do you think Ymir stood?"
"On something a lot bigger than him."
"And what was it and where did it go?"
"I don't know, maybe it was the ice. Maybe it's whatever the fire is burning."
"And maybe he ate it. Come on, we're gonna try to get you the biggest and best plants ever."
"I don't think it's fair to kill him just in case it might help."
"Vé. What if he wakes up?"
"...Okay, that's a good reason to kill him."
"So we're agreed!"
"I guess there are more of us than there are him. Maybe it's possible he cares more about being alive than we do, though. I mean, he has more space to care in, right?"
"Maybe he's having good dreams!"
"I don't care if he's having good dreams. I want to see what happens when he dies."
"I won't stop you."
"Then we're agreed!"
They kill Ymir. This turns out to be bloodier than expected. Dangerously so, as the blood floods over his skin and sweeps away people and things and what passes for dwellings.
Bounce bounce bounce bounce bounce.
Óðinn spits out blood and treads water. "I think he's dead."
Vili is too busy grinning to contribute to any discussion.
Eventually the blood dries and the corpse rots and they break up the bones to rearrange the shape a little.
They lose the seeds they rescued from the ice. Vé is devastated. He watches the receding ice for any sign of other preserved plants for a very long time. No one can say how long exactly, but very long. Eventually Óðinn lets him know they've found a little meadow of plants growing on an island in the sea. By now it's not a sea of blood; the blood dried, and the water rained down, and most of the ice has melted and left them with even more water.
He goes to see the island as soon as he hears about it.
Someone is already there, stretched out on a layer of green.
Vé has been staring at a receding glacier for long enough not to remember what to do about the fact that there's a person there. He stares.
And after a bit, the someone else notices him, rolls over onto his side and waves.
He waves back.