Castle hears it from his daughter in this clip from "Linchpin." She wants to know who Sophia is and what her dad's history with her looks like.
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Castle gets reamed out by Sophia in this clip from Castle. She is far from happy about the way he's handled the investigation.
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This is a promo for "Linchpin," the concluding hour of the annual Castle two-parter. You do NOT want to miss it.
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Castle Season 4 Episode 16 Quotes

I guess the good thing about having your daughter at crime scenes is that she can bring you dry clothes.

Castle

Life is a journey

Rick