(Adele will climb up ahead of Horace, and I'm going to retroactively assume she identified the dolgrims for you, because I don't want to keep coming up with different ways to say 'mystrey monster'.)
Grant: 12
Quaen: 11 (delayed)
Adele: 10
Horace: 5
Doc: 4 (delayed)
dolgrims: 2
Grant seeing the creatures, lets out a warning, "We've got trouble!", as a shot cracks out from his pistol. Unfortunately, it went well wide of the lead dolgrim, and he fell prone. Grant, you shoot then dive prone, you don't shoot while you're diving prone. That only works in bad plays.
Turning sharply at the warning, Quaen wastes absolutely no time. Pulling out a palmful of gave dirt, the elf pulls at the dark energies mirrored at the core of her own mortal light, as she was taught to draw upon in Aerenal. Quickly flickering her free hand in a tight and efficient series of arcane gestures, the dirt evaporates and disappears, leaving a faint blue glow in a vauge undefined shape before fading. Though she was only guessing at where to place her spell, she guessed fairly accurately, centering its area of effect almost exactly on the dolgrims' hiding spot, and leaving a clear area on the ledge for Grant. Almost simultaneously, an unnatural chill surrounds the squat abominations, thin mists descending to cloak them in fatigue and wintery death. Each of the four arms loosen and slacken, as strength and vitality are leeched from their bodies.
Grant sees one of the monsters fall from Quaen's spell, and the others are badly injured.
Moving away from her exposed position next to the corpse, Qauen manuvers for better cover against the crossbows' deadly barrage, drawing her revolver as she does so. Unless the monsters walk up to the ledge, she won't have a shot at them, but three others have to climb up ahead of her.
Adele makes her way up the rope rather quickly (accellerated climb) and takes a quick step to the side. Horace does the same. Doc, who's not the skilled climber that the two of them are, elects to climb at a normal rate, and is halfway up the rope when the surviving dolgrims act.
One fires a bolt at Adele, and manages to hit her before she's moved away from the rope (5 dmg). One takes a shot at Horace, which goes well wide and lands harmlessly on the ground below. And one passes just over the head of the prone Grant.