Rescue My Cow

There's a huge problem here. It so good that you happened to walk this way. I need your help. My love, Molly, my finest cow has disappeared! I wanted to give her a new type of food. She became really fat and I wanted to try out this diet, but she didn't like it. She ran away from me. I have to find her before she'd do something silly. What will happen to me if I lose her too?? I don't want to think about it. Please, help me this time! I'll go and check this way. That part is yours.