Nice! I liked this - the meaning behind the organic nature of the Wraithships, Teyla's reflections on herself and her Wraithgene, and some really deep insight into the kind of conflict the Wraithship brings up within her.

It would have been neat if Teyla had used John to reconnect with her humanity - substituting the hunger to feed with a different hunger, grounding herself. But this still works - and very well.
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If you give permission, I might try my hand at writing a remix from John's POV.