This is a partial transcript from "On the Record," February 27, 2007, that has been edited for clarity.

GRETA VAN SUSTEREN, HOST: More than a week ago, Heather Hundley left home for a relaxing day away from the family, but then something happened. When the Missouri mother returned home, her husband and three children gone, vanished.

Did Joel Hundley, her husband, just take off with the children? Where did he go with the children? Where are the children tonight?

Joining us are Joel's wife, Heather, and his sister, Shelly. Heather, have you heard from your husband?

HEATHER HUNDLEY, JOEL'S WIFE: No, I haven't, not within the last few days.

VAN SUSTEREN: Shelly, this is your brother. What can you tell me about him?

SHELLY HUNDLEY, JOEL'S SISTER: Well, yes, he's my brother, and I have really been concerned about him for a really long time. I do believe that he's in a delusional place and he's been there for a long time. And this is for me my worst nightmare come true.

VAN SUSTEREN: Shelly, why do you say that he's been delusional? What makes you suspicious about his behavior? What's peculiar about it?

SHELLY HUNDLEY: Well, for some years now, he has just — he has done things. I know he's taken the children with him when he's gone to sexual orgies. And this is a guy who's just completely out of balance, completely out of whack. He's been dangerous, and I think Heather's been in his grip for a long time, even though, you know, I and others have been really knowing that this capacity is in him.

VAN SUSTEREN: Heather, take me back to February 19. You got home about what time?

HEATHER HUNDLEY: I arrived home at 6:15. I found a note.

VAN SUSTEREN: OK. What did the note say?

HEATHER HUNDLEY: The note said, Your daughter is puking blood, and the neighbor is taking me to a hospital with her. And so I spent an hour- and-a-half looking at all the hospitals in Kansas City for my daughter, Juliana (ph), because she has a severe kidney problem. And I searched all the hospitals. And then I went and I got my friend, Bethany (ph), and I said, I need help. I can't find my daughter. I can't find my husband. Can you come back home with me? And so she came home, and we walked through the house and we realized all their clothes were missing. All their toys were missing and that he had gone with all the suitcases, disappeared.

VAN SUSTEREN: Have either one of you heard from him or — why do you think he might be in El Salvador?

SHELLY HUNDLEY: I think that — well, the police tracked him that far, so we know that that's actually something that the police were able to track, that he's gone into El Salvador. My only thought on that is I — we know that he has planned this for a long time. We have testimony from friends where he said he would do this very thing, take the children, that none of us would ever see them again.

And I think he's studied it out. I think he knows some of the reasons (ph) in the laws in El Salvador. And it's a real tough case for us. We're really here making our plea because there's no — it's a really tough case. And I think he knew exactly that that was one of the countries that he could go into.

VAN SUSTEREN: All right. Well, we put the pictures up. Heather, Shelly, thank you both. If anyone knows anything about this, call the FBI immediately.

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