Angel wasn't braced for the force Buffy hit him with. They went down in a heap.
Oz darted forward and pulled Doyle out of the way. Xander's attention was divided
between Angel and Buffy and helping Giles. Willow took full advantage of his
distraction. Blasting Giles with enough force to knock him to the ground, she
began screaming a spell.
"She's calling the demon!" Wesley recognized the spell immediately. Rushing to Giles, he pulled the older man to his feet and the two of them started chanting a warding spell.
Spike finally managed to pull his Sire away from a rampaging Slayer; Doyle yanked a knife from inside his shirt and sunk it into Buffy's thigh. He pulled the blood-covered blade out and tossed it to Xander.
"Kill the fuckin' thing."
Doyle's shout barely reached the warlocks ears over the roaring wind that surrounded them. Willow's magic was fighting with the two ex-watchers'. The force of the conflict was disturbing the atmosphere, the result being one hell of a storm. Rain poured from the sky, in seconds everything and everyone was soaked.
Xander skidded across the courtyard to Wes and Giles. He began screaming the summoning spell in tandem with Willow, Wes' trust in him was absolute and he switched spells immediately. After the slightest hesitation Giles joined them.
The rain was freezing and blinding...and slippery. Buffy squirmed out of Spike's hold and made another charge at Doyle. This time Angel was ready for her. He slammed her face first on the ground. Slayer reflexes saved her broken ribs when Angel kicked out at her, but she wasn't fast enough to avoid the punch he delivered when she made it to her feet. Whatever was left of her mind snapped along with the cartilage in her nose.
Grabbing her stake off the ground, she darted forward and sent a kick into the side of Angel's leg. He went down with a broken kneecap. Leaping over him she tackled Doyle. The stake was inches from his heart when Oz sank his fingers into her hair. Yanking backwards, he dragged her off Doyle. Spike grabbed the still fighting Slayer and began hauling her over to Willow.
Lightening was the newest addition to the evening. Streaks of it flashed across the sky and down to earth. Thunder ate at every sound, devouring it until all that could be heard was its growl. Willow's gleeful shriek was the first clue that it wasn't all the thunder. The demon came from nowhere. It was just there. A writhing roaring malignancy in a place that was empty seconds ago.
Spike slung Buffy at Giles and Wesley. Ripper made his presence felt when he slammed the Slayer face first into his knee. Stunned, it was easy for he and Wes to hold her. Moving forward to stand beside his mate, Xander passed him the knife covered in Slayer's blood.
Willow finally saw the knife. She immediately knew what it meant. Summoning power from Buffy's pain and the demon's presence she tried to literally pull lightening from the sky to fry Spike. Xander extended his arms out to the sides and shouted a single word. A wall of energy surrounded him and the vampire. The lightening was useless.
Knowing that he couldn't fight Willow's magic, Spike moved in on the demon. From the corner of his eye he saw Oz and Angel moving up to join the fight. The three of them moved in tandem and struck all at once. Willow was seriously pissed. Her wonderful plan was shot to hell and it was all Xander's fault. Rage fueled her actions; reason was a thing of the past. She threw everything she had at her former friend. If she was going to lose, she'd make damn sure he wasn't around to enjoy it.
Xander sensed the blast of energy before he saw it coming at him as a ball of lightening. Tears streamed down his cheeks as he extended his arms again. Saying the same word as before he summoned the wall of energy back. A second word was whispered under his breath and the writhing light that was the surface of the wall solidified into a mirror like substance.
The energy hit the mirror of light full force...and was reflected right back to its source. Willow was totally unprepared and was hit full on by the sum total of her own stolen power. Her lifeless corpse fell to the ground in a singed heap.
Willow's death freed the demon from the spell binding it to her. The aftershock of the magic's abrupt removal left it stunned for the one crucial moment it took for Spike to sink the blade deep into it's hide. With a sound like metal scraping glass it folded in on itself and disappeared.