[ In the water, sirens use signs, posture, and touch to communicate. So when Garner reaches out and pats her arm, she understands. Her chest fills with warmth. He sees her as a tribemate too. Acceptance like this means everything to her. It's how she was able to survive back home, and it's how she'll stop the apocalypse from happening here, with the others. ]

Yes. We go back. Sand is danger now. Not come back until safe.

[ Or until whatever carved those tunnels in the sand is long gone.

She puts a hand over his, a firm touch. She is with him, ready to snatch him from the jaws of death again. ]

I carry you, if you need. Or you lean, and we walk together.