Target their leader.

"Is everybody all right?" you ask.

One of the guards limps to you with a hand on his arm. He nods, and looks to the trail of bones leading from the others all the way down to the shallow ravine. No more are coming this way. "Yeah. All thanks to you. I heard your an ally of Lady Tedrilui. Thank you--"

"Hold on," one next to him says. She looks you over closely. "This isn't just Lady Tedrilui's ally. This is the Hero King, Kyle Warren. From Tivera. Or uhm, what was it called?"

"Castle Phoenix," says one of the passengers as she hurries out from her shattered carriage.

"I hate to cut this short, but I need to help the others," you say.

"Of course!" says the first guard. "Please, go. We're fine now. And we're not so weak to where we can't fend off stragglers. I'd also rather you deal with the gigantic one in the sky than us."

But the Witch of Decay is up to something too. It's become difficult to split your focus. Much of your party is dealing with the death knight and the remaining undead. That means you can either rush over to stop the pincer, or go after the Witch herself, and while being attacked on both sides would be bad, leaving the head necromancer alone seems like the worst idea possible when combating an army of undeath.

Speaking of which, as she raises up her arms, several previously defeated foes rise back to their feet.

Shit. You look to the others and call out, "Look behind you! Don't get surrounded!" as you sprint towards the Witch of Decay.

The dragon lands behind them.

A dragon?! Oh fuck. I thought it was going to be an even bigger bird.

It may not be the largest you've seen--smaller than Vyzia, closer to the size of Malakae--but it's by far the most foul. Whether or not the scales were always black, the creature's entire body has been tainted by the touch of death. Some of its armour remains, most of its flesh is gone, and now it buffets the battlefield with wind thrown from wings of nothing more than bone.

Still, you continue towards the Witch. You can't stop now. She's doing something else. You need to have faith in your party.

Then you hear a voice call out from farther north. You can't believe you can even hear it. Whoever is shouting, they're just emerging from the southern tip of Silverleaf.

"My sweetest honey! The love of my life! My precious husband~!" she yells. "Is that really you? I hope it is!"

Even the dragon is shocked. Thick vines lunge from within the forest like rope to bind the beast's back legs and wings. It panics and attempts to break free from its bindings, and while some vines snap, new ones replace them. It drags its claws through the grass while being pulled back and away from the battle. It snaps and snarls, unsure of what even has entangled it.

Four dryads appear, though one stands apart from the rest. "It really is you waaaay over there!" Peony calls. "M'lord! M'lord! You're here!"

You're near enough to the Witch to see her grit her teeth in frustration.

"I hate that god damn forest," she hisses.