If you read the calcified fragments, they talk about oryx sisters. I think she works for the witch-queen and that in order to live in the hive ship she ingested one of the worms. So she is a hive, and in order to survive she has to feed her worm which in turn feeds the witch queen.
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And her worm would involve cunning if it was from the witch queen, so be in a spy could feed it!
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Now that's an interesting concept too.
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I don't have all the fragments so I don't know the entire story, but from what I've read that's my thought process. I don't think she is talking to the awoken queen (presumed dead).
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Read ghost fragment queen 2.
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You can Google book of sorrows, pretty interesting read.