Over Buffy's shoulder, Wanda saw the refrigerator and the blood, and she couldn't help but wonder where it had come from, and how many people it took to come up with that much blood. How many people murdered, for the blood taken unwillingly, and how many people...
How many people it would take to support a vampire in any other way? A person couldn't...give up much blood too often, she thought. It would be like draining away their life, all the nutrients that sustained them, the cells that protected them from sickness...
She felt a little queasy, looking at all the blood and thinking about what it meant. She glared at Sarysi from behind Buffy. The vampire, however, was too busy gathering blood packs to notice.
When the vampire and Slayer returned from the kitchen, Wanda swallowed down her feelings and nodded agreement with Buffy's suggestion to leave normally -- no point risking the attention they might get leaving through the window, in her view. She gestured for Sarysi to go first, thinking Buffy could go next to keep an eye out. She turned to the others and offered help to support the injured alien. She would guard the rear of the little procession as well.
She trusted Buffy's vampire senses, but as they started moving, Wanda kept her own extra senses as widely open as she could. She thought that in the future, now that she knew what was out there, she would be scanning her surroundings a lot more often than she had been up to now. She wasn't sure that she could pick up vampires -- Sarysi was still mysteriously vague -- but she thought that she might be able to learn if she practiced more, especially with various aliens, and even if she couldn't, practice matching what she sensed with what she saw could only be useful.