Cold.
That was all she could feel. The stinging from the Master's bite numb from the chilling cold of the small pool of water. Everything sounded strange, muffled through the water. She knew she needed to get up, find the Master and kill him, yet her muscles failed to respond to her commands, the blood loss causing a fatigue she couldn't shake.
I'm gonna die by drowning because I was too weak. Some Slayer I am. Her vision was slowly fading to black, eyelids beginning to feel heavy.
"Now what do we have here. Looks like someone didn't finish his snack. Don't mind if I do." He wrapped his hand around the slim yet muscular arm. He pulled her close, growling at the bite mark adorning the gorgeous blonde's neck. He could hear the weakening heartbeat, and knew if he didn't move soon he would miss his chance. With some precision he placed his fangs right over the Master's. The first taste of her blood was exquisite; he blinked in surprise. He had never tasted something so delectable in his unlife. It wasn't until the tingle of power radiated up his spine that he understood: she was the Slayer! And he'd be the one to kill her! His third Slayer! How did he get so lucky! He continued to drink her life's essence when he felt her heart weaken even more. Then, he heard it; just the slightest sound. At first he thought he imagined it, but then he heard it again.
"I didn't want to die." Just a faint whisper coming from the mostly unconscious Slayer. He slipped his fangs from her neck as he felt her heart stop. He had planned on just leaving her there, but something in him caused his right hand to drift towards his throat and cut right along his jugular. He then brought her lips to his bleeding neck.
"It's okay, pet. Drink. Spike's gonna take good care of ya." Spike wasn't sure why he said it, she probably couldn't hear him anyway. But he could tell her mouth had filled with blood, his blood, and some residual life must have been in the tiny blonde; she swallowed.
"That's a good Slayer. There you go, pet." He could feel her drink further, knowing she would only stop when she had enough. She hungrily drank from him, her hand drifted and snaked around his head, pulling him closer. Minutes later, he felt her relax, and her hand fell away. She didn't however, slump like he assumed she would, like most do. Instead, she nuzzled closer to his neck, seeking something his cold body couldn't provide. He carefully stood, making sure his grip on the blonde prevented her from crumpling once more into the small pool. Picking her up with a gentleness that most would have laughed at, he carried her out of the little cave, and proceeded to walk through the tunnels towards his crypt.
Minutes later, Xander and Angel rushed into the room that Spike had vacated carrying the dead Slayer. Finding the room empty, they knew something bad had happened. The Master was free.
A/N: While rewatching Buffy, this idea crossed my mind and I decided to run with it. I will be altering some of the details of "Prophecy Girl" to make my story make sense, although most of what happens after the Master dies will be a complete Universe Alteration (UA). Not gonna make any promises with length. Although if there is anything you readers would like to see, drop me a comment and I'll try to work it in.