Why do the weird things always happen to her. First talking corpses, now this. 

"He thinks he can make it work for us?"

"He believes it will work for him."

"Do you know any details beyond - world of darkness, domination of the earth, all that? I hope he's not being literal, unless he's found a convenient blood fountain we need humans to live, and humans kind of need the sun."

"No. Presumably, there are further details in the Scroll."

"Well, let's find this 'Moth Priest,' then."

"If he came from Cyrodiil, it was likely by sea. We should start in Solitude or Windhelm."

"Good idea. Solitude's closest. The carriage drivers are usually up on the latest gossip, and we can ask around the docks, too, or at the inn."

"Right. Let us not waste time. Meet me by the dock in an hour."

"Sure thing." 

She's there at the appointed time; she hadn't really had to do anything to get ready, having just arrived, instead only stopping for a brief meal.

They cross to the mainland without incident, and head towards Solitude.

Ena asks the carriage driver a few questions, and successfully persuades him to tell her that he recently dropped an old man in grey robes who'd come up from the docks off at Dragon's Bridge, not too long ago.

"That's just down the road from here," she says to Elana. "With any luck, he won't have gotten far."

"Let us move swiftly, then."

To Dragonbridge.

Where everyone they ask seems to have no knowledge whatsoever of an old man in robes who passed through.

Ena huffs, then looks around. There's a boy that's been idly following the newcomers, clearly too curious for his own good.

"Boy, what's your name?" she asks him.

"Clint!" he responds. "Who're you? I'm patrolling the town, since dad won't let me be a soldier. You're supposed to identify yourself."

"Ena at-Sharinda," she responds patiently. "You're doing a very good job, I'm sure the Empire will be glad to have you when you're older. Have you seen a Moth Priest come through? He'd be an old man, likely in grey robes."

He nods. "Yeah! An old man like that came through with some Imperial soldiers. They got into a wagon and headed south across the bridge. They didn't stick around to visit, though, just left. Wasn't too long ago, you should be able to catch up. Why're you looking for him?"

"It's important for the war. You've been a big help." Well, a war. 

He smiles, and she manages to shoo him off to go 'patrol', then Ena turns to Elana. "South along the road. They'll probably be going slow, carriages often do along there."

"That works for and against us. If he's vulnerable to our ambush he's vulnerable to others'. Hopefully no one else has yet taken notice."

"Yeah." And onward down the road.

...Where it turns out that, yes, someone reached him before them. The carriage is blood-splattered and surrounded by corpses - including a few vampires. 

"Well, looks like we're a bit late," Ena says, before leaning over to riffle through one of the vampire's pockets with practiced movements.

"These aren't ours. Anything identifying?"

"Yeah, a note. Says to take the priest to Forebear's Hideout. From someone called Malkus." She glances around. "...I don't know where that is exactly, but those bloodstains might be a good place to start," she says, gesturing to a light trail of blood leading away from the fight.

"Agreed. Let's go."

She follows the trail, which leads south for a bit before veering up a mountainside. There's a group of standing stones, and the trail seems to vanish, until - there, a wide crack in the rock, leading into a cave.

Within, the cavern widens, revealing a ruined underground fortress. In the distance is a glowing blue-green orb on a platform. The Dawnguard have clearly beaten them here; several vampires lie dead, and Dawnguard warriors patrol the remaining walls.

"Wonderful."

"Thoughts on strategy?"

She concentrates for a moment to activate her nightvision.

"I don't see any other exits. They're up against the anvil. We can be the hammer."

"I can probably take down a few of the guards before they can raise the alarm, though it'll get harder as they get closer together. Take over the walls, then open fire on anyone below?"

"Thinning their number is a good idea. You can support from above. I will take them at ground level."

"Right." And she draws her daggers, and slinks towards the ruins. Even knowing where she is, it's hard to track her, and she easily takes advantage, sidling behind each Dawnguard on the wall and slitting their throat before lowering them quietly to the ground.

Finally, the last one's dead, and she's looking out over the courtyard - there's a fire in the center, a single Dawnguard, and an armored troll, with another guard along a balcony overlooking the space. She signals Elana up, then draws her bow, carefully poisons an arrow, and takes aim at the guard that's beside the armored troll, killing him in a single shot.