Help them discreetly.

A while later you're back at the tavern and Rhonnan is analyzing the contract while sharing a mug of Healing Mead, basically an alcoholic Healing Potion, with his sister.

"Yeah, there is a lot of magic here. This contract changed its appearance permanently after we took it, but there's another spell in it. The contract was originally level 70x3, and changed to 20x2 whenever we approached, meaning someone used it as bait. For us, sister. We're being targeted, and if it wasn't for... her, we'd be still stuck with those wyrms being fucked out of our minds."

"70x3?! That's insane!" Rhiannon looks at you, visibly shocked "What level are you? I mean, who are you?!"

The Power Token. It gives you unmatched power, making you unbeatable in combat as long as you are armed with at least a spoon. You intend to help them without really getting yourself into trouble, and respond properly You should be worried about your current situation. I don't know you and I didn't come to you knowing you were in danger, but know that I'm your friend, since I was targeted as well, even if by accident.

"Fine, I get it. Want to keep your origins hidden. I'm fine with it as long as you don't become a problem. But we already know who is targeting us."

They explain to you what's happening before getting up and heading to the contractor to receive your reward.

Turns out they belong to a certain noble family back in the elven lands, and were being guarded by Hughes Galleon, the leader of the Stars of Atlas, the local guild. They told him not to use potions near the twins, saying it would be humiliating, and Hughes agreed. You killed him, humiliating the guild, and now they're probably targeting the elves to stop them from returning to their land to "avoid the leak of this information". But actually the guild just wants to poke the elves and cause an attack, so they can justify a war - which would bring in a lot of money.

Like before there are many eyes on you, but now they seem angrier than normal.

The contractor is an old man, owner of a small shop in a poor street. He's waiting in front of the shop when you arrive, smoking while sitting on the sidewalk. The rogue says "Mr Herring?"

"Uh, yes. Who are you?" he says, looking at the entire group. You show the heads of the targets and his eyes change into surprise "Are those...?"

The wyrms, yes. We completed your contract.

"That is... amazing news!" he gets up and walks to the shop saying "Give me a moment, I will take your rewards" leaving you alone on the street. After less than a minute later he returns pushing a small chest on a cart, along with a sword and a shield. You take the items and store the money, noticing it has exactly 30k, as the contract offered. The group thanks the man who waves and walks into the shop again, carrying the heads on the cart and locking the door on the way in.

I suppose you were right, someone rich is behind this. The guild has enough resources to pay a random shopkeeper to take the heads and give the reward.

Rhiannon says "It wouldn't even scratch the surface of their vaults. We have to leave or do something quickly, they will now, more than even, want to stop us since we have money to return home and they know it."

"I agree, sister, but we have to act carefully. Destroying this guild wouldn't bring any consequences beyond being grounded for a few years, but we shouldn't risk our lives without a plan. We could also just leave, but it would be suicide to go by ourselves, they'd finish us before we walked out the walls. Or at least you, I could probab-"

"This is not the time for this!"

"H-hey, I'm just kidding... But, say, pink stranger..."