[h3]The Hunter's Dream[/h3]
Ophelia arrived to fire her pistol at their adversary, puncturing one of its eyes, only for that eye to immediately reconstitute itself without the creature it was a part of so much as flinching. Farren arrived and stabbed into its head with all of his strength, drawing blood and jostling it, but its wound regenerated. Ophelia stepped forth and detonated an empowered thrust of the Holy Moonlight Sword, blowing a hole in the bulbous brain only for it to regrow into a new whole. Gerlinde arrived behind it, slipping into the workshop from the other door, and stabbed it in the back with her threaded cane.
They all arrived and attacked it with all their strength, and the Winter Lantern merely kept holding on to Torquil, enveloping him, gnawing on him, consuming his flesh and blood... and in so doing replenishing itself. Whatever regenerative potential it spent to recover from their onslaught was restored as it consumed their captured ally; it was, for all intents and purposes, content to simply ignore them and let them attack it.
And through it all, despite all the damage it had taken, its glowing eyes remained on them. Ophelia, Farren and Gerlinde all felt frenzy building, and they all had black quills materializing and stabbing them at a steady pace, like the ticking of a nightmare clock. The quills were real; each one truly did skewer their flesh and spill their blood, and each one did diminish their regenerative potential.
Farren did indeed exceed his capacity of frenzy and exploded in a cascade of blood, only to find – in the brief instant before he injected himself with a blood vial – that he was on the verge of death. Between the continuous damage inflicted by simply being in the creature's sight and the frenzy, the damage had far exceeded his regenerative potential. Had his reaction not been prepared and prompt, he would have died... and even now the blood vial only bought him time, as he felt frenzy start building once more and the quills continue to pierce him.
Ophelia, despite not having been near the monster quite as long as Farren, would also feel that she was on the verge of erupting with frenzy, made more vulnerable to its influence by her greater insight.

A burst of blood spurted onto the ground from Torquil's lower half – the half not inside the Winter Lantern – as frenzy overcame him, too, and finally the abomination seemed to stumble and stagger for a moment. Not from any amount of damage they had done to it, but rather because the person it was leaning on – Torquil – faded away and disappeared.