GetComponentsInChildren problem

Good day, commUnity! I have a prefab of a character like this:

Say, I have an object iCharacter, instantiated from peasant prefab. I need to get the TargetLookAt child object from code. I tried the following ways:

1)

         Transform targetLookAt = iCharacter.transform.FindChild("TargetLookAt");
         if (targetLookAt != null)
             _targetLookAt = targetLookAt.transform;

FindChild always returns null. It seems like it searches only among the first generation of children - if it is so, then ok, this code is incorrect.

2)

         Transform [] children = iCharacter.GetComponentsInChildren <Transform> ();
         foreach (Transform child in children)
         {
             if (child.name == "TargetLookAt")
             {
                 _targetLookAt = child;
                 break;
             }
         }

This code seems to be correct. Moreover, GetComponentsInChildren should search for components in the whole hierarchy of a parent. So I expected to get all the transforms, parented to peasant. But instead I got only one Transform in the children array.

3) Ok, Transform is IEnumerable, so I can simply take the iCharacter.transform and look through all the child transforms in a loop:

         for (int i = 0; i < iCharacter.transform.childCount; ++i)
         {
             var child = iCharacter.transform.GetChild (i);
             if (child.name == "TargetLookAt")
             {
                 _targetLookAt = child;
                 break;
             }
         }

Still no result, cause iCharacter.transform.childCount = 0 somehow. So there are two questions: - How to find a specific child in a GameObject, instantiated from a prefab? - Why all my code samples don't work?

P.S. I have a sense, that all these problems have one common solution.