Namor The First Mutant (2010) #4:

With Halloween just around the corner, let's wrap up Namor's involvement in the Curse Of The Mutants story and his battle against a vampiric version of his grandfather.

You may recall that what was left of Atlantis was under siege from a great number of aquatic vampires. An ancient Atlantean wizard, named simply Logomancer, had found a spell which would eliminate those vampires but its requires the blood of a king. Namor just happens to be one. Knowing it would kill him, he prepares to take one for the team and leads his small army to face undersea bloodsuckers on their turf.

(For a slightly more detailed synopsis of issues one through three of this series, click on the "Curse Of The Mutants" tab under the "Story Arcs" heading at right)

Namor figured out that the leader of the vampires (Aqueos) is none other than his grandfather, Thakorr. While he faces off with him inside the vampire lair, his army outside get a little support.

Ah, there's 'mancer now! The wizard casts a spell that will reduce the power that the vampire horde draws from Thakorr, so that's a start. 

Inside, meanwhile, Namor and Thatkorr are squaring off rather bluntly.

Thakorr is a tough old bird though and starts to turn the tide against Namor, so to speak. Abira is there for the assist, however.

Guess so.

With his advantage restored and again with Abira's assistance, Namor begins the spell Logomancer had provided him with which he could destroy the vampires. It required the blood of a king and he is no longer the only king in the room.

Thakorr's still finds a way to get a final dig in.

Where Thakorr sees failure, Namor sees opportunity. He claims the city in which the Aqueos resided as part of his realm and offers the remaining wretches a chance to continue...huh...living, I guess, if that's what they call it. Don't raid us and I won't kick your ass, is what it boils down to. 

And so ends the Curse Of The Mutants story.

There was a lot packed into these pages including Loa discovering that she could breathe underwater. I thought it had already been established that she could with the aid of the amulet around her neck or something. Perhaps reading these books out of order has confused me there. They do not dwell on it in this book but it seems clear that it will discussed in future stories.

Unfortunately, the book ends with the confirmed deaths of two Atlantean brothers, Husam and Husni, who were fairly prominent in the earlier issues of this series. I enjoyed Husam in particular though he had that feel about him like he wouldn't be around very long. Mind you, in comics, he could pop up in the next line-wide event for all we know.