"Alexander! Good to see you again," Lisa smiled at the newcomer. "Yeah, I saw the message on the journal suggesting we all give blood, and it seemed like a good idea. Any of us could get injured at any time, I guess, and we can't turn to the Red Cross if we need blood out here. At least, not until we're rescued. I'm a little surprised we haven't been rescued by now," she said. Lisa had been convinced that rescue was imminent when she'd started hearing sirens, but she'd since learned that no one else was hearing them. Apparently they were some kind of hallucinations, which was worrying in itself.