Re: lack of emotionality, another common response to trauma is to withdraw - its common in animals - the freeze response, rabbit in headlights, fawn in the grass - "playing dead". Biochemically and physiologically it's as natural response as hysteria. The "thinking brain" almost literally detaches itself from sensory and emotional input, to cope better. It's also seen in road traffic accidents, childbirth, acts of violence in war etc. Something doesn't seem right but again, I think reaction could all be very natural. Re: their age gap, Caroline's father was 58 when she was born - I suspect she didn't see the same age gap we did, especially in what seem to be slightly old fashioned island settings with strong catholic/conservative values. It's hard to get a feel for crimes that happen outside one's immediate setting.