That one makes sense in the narrative, mind you. Women tend to not like this sort of thing, as I'm sure you can imagine?Why doesn't Triss and Yen go along with the 3-some?
A bit of a stretch, but I'm certain it falls in the "oft-discussed" category?Why Eredin wants to sacrifice Ciri when she's the only one capable of stopping the white frost?
I'd also argue killing her wasn't really the plan, just a possible side-effect (do also bear in mind, it's Ciri who states that, and it might have just been Avallac'h who fed it to her... so, meh. We don't really know Eredin's plans, all we get is hearsay.