What I'm saying is, it's been 6 months or so and if Terri stashed Kyron, I can only see that lasting perhaps a week. Not all this time fully knowing she's likely going to jail because of it. She'd have squawked long before now.
I think most people would, but I don't think TH has any intention of going to prison for anything and she knows the game pretty well - no body = no crime. I think she's far too spiteful to help find Kyron, even if handed off, unless forced to (facing a very long sentence, death penalty) and she wants to plea bargain. Even then, I feel she is so spiteful she might rather sit behind bars than allow KH to see Kyron. However, if I could see her actually speak it might shed a whole different light on her (or renew my suspicions).
For now, I believe TH is looking out for TH and will hold out forever in a Scott Peterson way.