The spider did not have good distance vision, but as the immediate situation eased, she had a chance to pay more attention to the other group, not far away.
Lycanthrope.
There was still darkness, but nothing got Aridha's blood pumping faster or more than fighting a werebeast. Tolan would also need healing soon. The time for the beast was passing...magic was needed.
The spider writhed horribly, and collapsed; folding back on itself until only an elf was left, scimitar in hand but significantly less horrifying.
She incanted, keeping a wary eye on the reaver in front of her, but focusing her will on the larger danger.
Sister Moon, one who stands before me bears your curse. Turn your eye on him now, and take your gift from him.
From the sky overhead, a shaft of pure liquid silver-white light shone down, transfixing the wereboar. It burned like ice, like fire...but worse still, he felt the power of his transformation beginning to leach away from him! He was returning to human form!
(Moonbeam! It's a 5' radius, but I can fit it in behind him so it only affects the boar. Constitution save (at disadvantage because he's a shapechanger) DC 14, or take [roll0] radiant damage (half on success). If he fails, he'll be forced to resume his natural form. Also, the spell has Concentration duration. The first time he enters the spell area each turn, or if he starts his turn in it, he must repeat the save and take damage again.)